hoa_video::GameVideo Class Reference

Manages all the video operations and serves as the API to the video engine. More...

#include <video.h>

Inheritance diagram for hoa_video::GameVideo:

[legend]Collaboration diagram for hoa_video::GameVideo:

[legend]List of all members.

Public Member Functions

ParticleEffectID AddParticleEffect (const std::string &particle_effect_filename, float x, float y, bool reload=false)

add a particle effect at the given point x and y

bool ApplyLightingOverlay ()

call after rendering all real lights. This function renders all lights to the lighting overlay texture, Moved into ApplyLightingOverlay call after all map images are drawn to apply lighting. All menu and text rendering should occur AFTER this call, so that they are not affected by lighting.

bool ApplySettings ()

applies any changes to video settings like resolution and fullscreen. If the changes fail, then this function returns false, and the video settings are reset to whatever the last working setting was.

ScreenRect CalculateScreenRect (float left, float right, float bottom, float top)

converts coordinates given relative to the current coord sys into "screen coordinates", which are in pixel units with (0,0) as the top left and (w-1, h-1) as the lower-right, where w and h are the dimensions of the screen

int32 CalculateTextWidth (const std::string &font_name, const std::string &text)

calculates the width of the given text if it were rendered with the given font If an invalid font name is passed, returns -1

int32 CalculateTextWidth (const std::string &font_name, const hoa_utils::ustring &text)

calculates the width of the given text if it were rendered with the given font If an invalid font name is passed, returns -1

bool CaptureScreen (StillImage &id)

captures the contents of the screen and saves it to an image descriptor

bool Clear (const Color &c)

Clears the screen to a specific color.

bool Clear ()

Clears the contents of the current screen.

void DEBUG_NextTexSheet ()

These cycle through the currently loaded texture sheets so they can be viewed on screen.

void DEBUG_PrevTexSheet ()

bool DeleteImage (ImageDescriptor &id)

decreases ref count of an image (static or animated)

void DeleteMenuSkin (std::string &skin_name)

Deletes a menu skin that has been loaded.

void DisableFog ()

disables fog

void DisablePointLights ()

disables point lights

void DisableSceneLighting ()

disables scene lighting

bool Display (int32 frame_time)

call at end of every frame

bool Draw (const RenderedLine &line, int32 tex_index)

Draws a rendered line object.

bool Draw (const RenderedString &string)

Draws a rendered string object.

void DrawFPS (uint32 frame_time)

Updates the FPS counter and draws the current average FPS to the screen The number of milliseconds that have expired since the last frame was drawn.

bool DrawFullscreenOverlay (const Color &color)

draws a full screen overlay of the given color

void DrawGrid (float x, float y, float x_step, float y_step, const Color &c)

draws a line grid. Used by map editor to draw a grid over all the tiles. This function will start at (x,y), and go to (xMax, yMax), with horizontal cell spacing of xstep and vertical cell spacing of ystep. The final parameter is just the color the lines should be drawn

bool DrawHalo (const StillImage &id, float x, float y, const Color &color=Color(1.0f, 1.0f, 1.0f, 1.0f))

draws a halo at the given spot

bool DrawImage (const ImageDescriptor &id, const Color &color)

draws an image which is modulated by a custom color

bool DrawImage (const ImageDescriptor &id)

draws an image which is modulated by the scene's light color

bool DrawLight (const StillImage &id, float x, float y, const Color &color=Color(1.0f, 1.0f, 1.0f, 1.0f))

draws a real light at the given spot

bool DrawLightning ()

call this every frame to draw any lightning effects. You should make sure to place this call in an appropriate spot. In particular, you should draw the lightning before drawing the GUI.

bool DrawParticleEffects ()

draws all active particle effects

void DrawRectangle (const float width, const float height, const Color &color)

Draws a solid rectangle of a given color. Draws a solid rectangle of a given color. For that, the lower-left corner of the rectangle has to be specified, and also its size. The parameters depends on the current Coordinate System.

bool DrawText (const hoa_utils::ustring &uText)

unicode version of DrawText(). This should be used for anything in the game which might need to be localized (game dialogue, interface text, etc.)

bool DrawText (const std::string &text)

non-unicode version of DrawText(). Only use this for debug output or other things which don't have to be localized

bool EnableFog (const Color &color, float intensity)

sets fog parameters

bool EnablePointLights ()

call if this map uses real lights

bool EnableSceneLighting (const Color &color)

turn on the ligt color for the scene

void EnableScissoring (bool enable)

enables scissoring, where you can specify a rectangle of the screen which is affected by rendering operations. MAKE SURE to disable scissoring as soon as you're done using the effect, or all subsequent draw calls will get messed up

void EnableTextShadow (bool enable)

enables/disables text shadowing

void FadeScreen (const Color &color, float fade_time)

Begins a screen fade.

const CoordSys & GetCoordSys () const

return a reference to the coordinates system

StillImage * GetDefaultCursor ()

returns the cursor image

void GetDrawPosition (float &x, float &y)

Gets the location of the draw cursor.

std::string GetFont () const

get name of current font

FontProperties * GetFontProperties (const std::string &font_name)

Get the font properties for a previously loaded font.

int32 GetFrameChange ()

returns the amount of animation frames that have passed since the last call to GameVideo::Display(). This number is based on VIDEO_ANIMATION_FRAME_PERIOD, and is used so that AnimatedImages know how many frames to increment themselves by.

float GetGamma ()

Returns the gamma value.

int32 GetHeight () const

returns height, (whatever was set with SetResolution)

bool GetImageInfo (const std::string &file_name, uint32 &rows, uint32 &cols, uint32 &bpp)

Get information of an image file.

int32 GetNumParticles ()

get number of live particles

ParticleEffect * GetParticleEffect (ParticleEffectID id)

get pointer to an effect given its ID

void GetPixelSize (double &x, double &y)

Return the pixel size expressed coordinate system units.

Color & GetSceneLightingColor ()

returns the scene lighting color

ScreenRect GetScissorRect ()

returns scissor rect

Color GetTextColor () const

get current text color

int32 GetWidth () const

returns width, (whatever was set with SetResolution)

bool IsFading ()

Determines if a fade is currently occurring.

bool IsFullscreen ()

returns true if game is in fullscreen mode

bool IsMenuSkinAvailable (std::string &skin_name) const

Returns true if there is a menu skin avialable corresponding to the argument name.

bool IsScissoringEnabled ()

returns true if scissoring's enabled

bool IsShaking ()

returns true if screen is shaking

bool IsValidFont (const std::string &name)

Returns true if a font has already been successfully loaded.

bool LoadAnimatedImageFromElementsSize (AnimatedImage &image, const std::string &file_name, const uint32 rows, const uint32 cols)

Loads a MultiImage in an AnimatedImage as frames. This function loads an image and cut it in pieces, loading each of that on frames of an AnimatedImage.

bool LoadAnimatedImageFromNumberElements (AnimatedImage &image, const std::string &file_name, const uint32 rows, const uint32 cols)

Loads a MultiImage in an AnimatedImage as frames. This function loads an image and cut it in pieces, loading each of that on frames of an AnimatedImage.

bool LoadFont (const std::string &TTF_filename, const std::string &name, uint32 size)

Loads a font from a .ttf file with a specific size.

bool LoadImage (ImageDescriptor &id)

loads an image (static or animated image). Assumes that you have already called all the appropriate functions to initialize the image. In the case of a static image, this means setting its filename, and possibly other properties like width, height, and color. In the case of an animated image, it means calling AddFrame().

bool LoadImageGrayScale (ImageDescriptor &id)

bool LoadMultiImageFromElementsSize (std::vector< StillImage > &images, const std::string &filename, const uint32 width, const uint32 height)

Loads a MultiImage in a vector of StillImages. This function loads an image and cut it in pieces, loading each of that on separate StillImage objects. It uses the size of the stored elements as input parameters.

bool LoadMultiImageFromNumberElements (std::vector< StillImage > &images, const std::string &filename, const uint32 rows, const uint32 cols)

Loads a MultiImage in a vector of StillImages. This function loads an image and cut it in pieces, loading each of that on separate StillImage objects. It uses the number of stored elements as input parameters.

bool MakeLightning (const std::string &lit_file)

call to create lightning effect

bool MakeScreenshot ()

makes a screenshot, saves it as screenshot.jpg in the directory of the game

void Move (float x, float y)

sets draw position to (x,y)

void MoveRelative (float dx, float dy)

moves draw position (dx, dy) units

void PopMatrix ()

pops the modelview transformation from the stack.

void PopState ()

pops the most recently pushed video engine state from the stack and restores all of the old settings.

void PushMatrix ()

saves current modelview transformation on to the stack. In English, that means the combined result of calls to Move/MoveRelative/Scale/Rotate

void PushState ()

saves entire state of the video engine on to the stack (all draw flags, coordinate system, scissor rect, viewport, etc.) This is useful for safety purposes between two major parts of code to ensure that one part doesn't inadvertently affect the other. However, it's a very expensive function call. If you only need to push the current transformation, you should use PushMatrix() and PopMatrix()

bool ReloadTextures ()

reloads textures that have been unloaded after a video settings change

RenderedString * RenderText (const hoa_utils::ustring &txt)

Renders the given string to a drawable object.

void Rotate (float angle)

rotates images counterclockwise by 'angle' radians

bool SaveImage (const std::string &file_name, const AnimatedImage &image) const

Saves an AnimatedImage into a file.

bool SaveImage (const std::string &file_name, const StillImage &image) const

Saves a StillImage into a file.

bool SaveImage (const std::string &file_name, const std::vector< StillImage * > &image, const uint32 rows, const uint32 columns) const

Saves a vector of images in a single file.

void Scale (float x, float y)

after you call this, subsequent calls to DrawImage() result in a scaled image

void SetCoordSys (const CoordSys &coordinate_system)

sets the coordinate system. Default is (0,1024,0,768)

void SetCoordSys (float left, float right, float bottom, float top)

sets the coordinate system. Default is (0,1024,0,768)

bool SetDefaultCursor (const std::string &cursor_image_filename)

sets the default cursor to the image in the given filename

void SetDefaultMenuSkin (std::string &skin_name)

Sets the default menu skin to use.

void SetDrawFlags (int32 first_flag,...)

sets draw flags (flip, align, blending, etc). Simply pass in as many parameters as you want, as long as the last parameter is a zero. e.g. SetDrawFlags(VIDEO_X_LEFT, VIDEO_Y_CENTER, 0);

bool SetFont (const std::string &name)

sets current font

bool SetFontShadowStyle (const std::string &font_name, TEXT_SHADOW_STYLE style)

sets the shadow style to use for the given font

bool SetFontShadowXOffset (const std::string &font_name, int32 x)

sets the shadow offset to use for a given font. By default, all font shadows are slightly to the right and to the bottom of the text, by an offset of fontHeight / 8. That doesn't always look good though, so use this function to adjust it if you want.

bool SetFontShadowYOffset (const std::string &font_name, int32 y)

bool SetFullscreen (bool fullscreen)

sets the game to fullscreen or windowed depending on whether true or false is passed

void SetGamma (float value)

Sets a new gamma value using SDL_SetGamma().

bool SetResolution (int32 width, int32 height)

sets the current resolution to the given width and height

void SetScissorRect (const ScreenRect &rect)

sets the rectangle to use for scissorring. This version of the function expects a ScreenRect, in other words the coordinates have already been transformed to integer values (pixel unit) with (0,0) as the upper left and (w-1, h-1) as the lower right, where w and h are the current screen dimensions

void SetScissorRect (float left, float right, float bottom, float top)

sets the rectangle to use for scissorring, where you can specify an area of the screen for draw operations to affect. Note, the coordinates you pass in are based on the current coordinate system, not screen coords

bool SetTarget (VIDEO_TARGET target)

set the target, i.e. whether the video engine is being used to draw to an SDL window, or a QT widget. (There are some important differences, so the video engine needs to know).

void SetTextColor (const Color &color)

sets current text color

void SetTransform (float m[16])

sets OpenGL transform to contents of 4x4 matrix (16 values)

void SetViewport (float left, float right, float bottom, float top)

sets the viewport, i.e. the area of the screen that gets drawn to. The default is (0, 100, 0, 100).

bool ShakeScreen (float force, float falloff_time, ShakeFalloff falloff=VIDEO_FALLOFF_NONE)

shakes the screen

bool SingletonInitialize ()

A method for the inheriting class to implement, which initializes the class.

void StopAllParticleEffects (bool kill_immediate=false)

stops all active particle effects

bool StopShaking ()

stops all shake effects

StillImage TilesToObject (std::vector< StillImage > &tiles, std::vector< std::vector< uint32 > > indices)

converts a 2D array of tiles into one big image

bool ToggleAdvancedDisplay ()

toggles advanced information display for video engine, shows things like number of texture switches per frame, etc.

void ToggleFPS ()

toggles the FPS display (on by default)

bool ToggleFullscreen ()

toggles fullscreen on and off

bool UnloadTextures ()

unloads all texture sheets from memory when we lose the GL context, so textures can be properly reloaded

~GameVideo ()

Methods for loading of menu skins

These methods all attempt to load a menu skin. The differences between these implementations are whether the skin includes a background image, single background color, multiple background colors, or some combination thereof.

Parameters:

	skin_name	The name that will be used to refer to the skin after it is successfully loaded
	border_image	The filename for the multi-image that contains the menu's border images
	background_image	The filename for the skin's background image (optional)
	top_left	Sets the background color for the top left portion of the skin
	top_right	Sets the background color for the top right portion of the skin
	bottom_left	Sets the background color for the bottom left portion of the skin
	bottom_right	Sets the background color for the bottom right portion of the skin
	make_default	If this skin should be the default menu skin to be used, set this argument to true

Returns:: True if the skin was loaded successfully, or false in case of an error

A few notes about this function:

If you set a background image, any background colors will not be visible unless the background image has some transparency
If no other menu skins are loaded when this function is called, the default skin will automatically be set to this skin, regardless of the value of the make_default parameter.

bool LoadMenuSkin (std::string skin_name, std::string border_image, std::string background_image, Color top_left, Color top_right, Color bottom_left, Color bottom_right, bool make_default=false)

A background image with multiple background colors.

bool LoadMenuSkin (std::string skin_name, std::string border_image, std::string background_image, Color background_color, bool make_default=false)

A background image with a single background color.

bool LoadMenuSkin (std::string skin_name, std::string border_image, Color top_left, Color top_right, Color bottom_left, Color bottom_right, bool make_default=false)

No background image with multiple background colors.

bool LoadMenuSkin (std::string skin_name, std::string border_image, Color background_color, bool make_default=false)

No background image with a single background color.

bool LoadMenuSkin (std::string skin_name, std::string border_image, std::string background_image, bool make_default=false)

A background image with no background colors.

Private Member Functions

bool _BindTexture (GLuint tex_ID)

wraps a call to glBindTexture(), except it adds checking to eliminate redundant texture binding. Redundancy checks are already implemented by most drivers, but this is a double check "just in case"

bool _CacheGlyphs (const uint16 *uText, FontProperties *fp)

caches glyph info and textures for rendering

void _ConvertImageToGrayscale (const private_video::ImageLoadInfo &src, private_video::ImageLoadInfo &dst) const

Converts a color image to a grayscale one; Converts a colored image in a grayscale one. Actually, it converts not an image, but an ImageLoadInfo structure. This is used internally when creating grayscale images.

int32 _ConvertXAlign (int32 xalign)

converts VIDEO_DRAW_LEFT or VIDEO_DRAW_RIGHT flags to a numerical offset

int32 _ConvertYAlign (int32 yalign)

converts VIDEO_DRAW_TOP or VIDEO_DRAW_BOTTOM flags to a numerical offset

GLuint _CreateBlankGLTexture (int32 width, int32 height)

creates a blank texture of the given width and height and returns integer used by OpenGL to refer to this texture. Returns 0xffffffff on failure.

std::string _CreateTempFilename (const std::string &extension)

returns a filename like TEMP_abcd1234.ext, and each time you call it, it increments the alphanumeric part of the filename. This way, during any particular run of the game, each temp filename is guaranteed to be unique. Assuming you create a new temp file every second, it would take 100,000 years to get from TEMP_00000000 to TEMP_zzzzzzzz

private_video::TexSheet * _CreateTexSheet (int32 width, int32 height, private_video::TexSheetType type, bool is_static)

creates a texture sheet

bool _DEBUG_ShowAdvancedStats ()

function solely for debugging, which shows number of texture switches made during a frame, and other statistics useful for performance tweaking, etc.

bool _DEBUG_ShowTexSheet ()

function solely for debugging, which displays the currently selected texture sheet. By using DEBUG_NextTexSheet() and DEBUG_PrevTexSheet(), you can change the current texture sheet so the sheet shown by this function cycles through all currently loaded sheets.

bool _DeleteImage (AnimatedImage &id)

decreases ref count of an animated image

bool _DeleteImage (StillImage &id)

decreases ref count of an image

bool _DeleteImage (private_video::Image *const image)

decreases the reference count of an image

bool _DeleteTempTextures ()

deletes the temporary textures from the "temp" folder that were saved by _SaveTempTextures()

bool _DeleteTexture (GLuint tex_ID)

wraps a call to glDeleteTextures(), except it adds some checking related to eliminating redundant texture binding.

bool _DrawElement (const private_video::ImageElement &element, const Color *color_array)

draws an image element, i.e. one image within an image descriptor which may contain multiple images

bool _DrawStillImage (const StillImage &img, const Color &color)

helper function to DrawImage() to do the actual work of drawing an image

bool _DrawStillImage (const StillImage &img)

helper function to DrawImage() to do the actual work of doing an image

bool _DrawTextHelper (const uint16 *const uText)

does the actual work of drawing text

RenderedLine * _GenTexLine (uint16 *line, FontProperties *fp)

generates a texture for a given line

void _GetBufferFromImage (hoa_video::private_video::ImageLoadInfo &buffer, hoa_video::private_video::Image *img) const

Pass an image (video memory) to a system memory buffer.

void _GetBufferFromTexture (hoa_video::private_video::ImageLoadInfo &buffer, hoa_video::private_video::TexSheet *texture) const

Pass a texture (video memory) to a system memory buffer.

bool _GetImageInfoJpeg (const std::string &file_name, uint32 &rows, uint32 &cols, uint32 &bpp)

Get information of a Jpeg file.

bool _GetImageInfoPng (const std::string &file_name, uint32 &rows, uint32 &cols, uint32 &bpp)

Get information of a Png file.

Color _GetTextShadowColor (FontProperties *fp)

retrieves the shadow color based on the current color and shadow style

private_video::TexSheet * _InsertImageInTexSheet (private_video::Image *image, private_video::ImageLoadInfo &load_info, bool is_static)

inserts an image into a texture sheet

bool _LoadImage (AnimatedImage &id)

loads an animated image. Assumes that you have called AddFrame for all the frames.

bool _LoadImage (StillImage &id)

loads an image

bool _LoadImageHelper (StillImage &id)

does the actual work of loading an image

bool _LoadMultiImage (std::vector< StillImage > &images, const std::string &file_name, const uint32 &rows, const uint32 &cols)

Loads an image file in several StillImages.

bool _LoadRawImage (const std::string &file_name, private_video::ImageLoadInfo &load_info)

Load raw image data from a file.

bool _LoadRawImageJpeg (const std::string &file_name, private_video::ImageLoadInfo &load_info)

Load raw image data from a JPG file.

bool _LoadRawImagePng (const std::string &file_name, private_video::ImageLoadInfo &load_info)

Load raw image data from a PNG file.

void _PopContext ()

restores coord system, draw flags, and transformations

void _PushContext ()

saves coord system, draw flags, and transformations

bool _ReloadImagesToSheet (private_video::TexSheet *tex_sheet)

loop through all currently loaded images and if they belong to the given tex sheet, reload them into it

bool _RemoveImage (private_video::Image *image_to_remove)

removes the image from the STL map with the same pointer as the one passed in. Returns false on failure

bool _RemoveSheet (private_video::TexSheet *sheet_to_remove)

removes a texture sheet from our vector of sheets and deletes it

void _RGBAToRGB (const private_video::ImageLoadInfo &src, private_video::ImageLoadInfo &dst) const

Converts a RGBA buffer to a RGB one.

float _RoundForce (float force)

rounds a force value to the nearest integer. Rounding is based on probability. For example the number 2.85 has an 85% chance of rounding to 3 and a 15% chance of rounding to 2

bool _SaveJpeg (const std::string &file_name, hoa_video::private_video::ImageLoadInfo &info) const

Saves Raw data in a Jpeg file.

bool _SavePng (const std::string &file_name, hoa_video::private_video::ImageLoadInfo &info) const

Saves Raw data in a Png file.

bool _SaveTempTextures ()

saves temporary textures to disk, in other words, textures which were not loaded to a file. This is used when the GL context is being destroyed, perhaps because we are switching from windowed to fullscreen. So, we need to save all textures to disk so we can reload them later.

int32 _ScreenCoordX (float x)

takes an x value and converts it into screen coordinates

int32 _ScreenCoordY (float y)

takes an x value and converts it into screen coordinates

bool _ShouldSmooth ()

Whether textures should be smoothed for non natural resolution.

void _UpdateShake (int32 frame_time)

updates the shaking effect

GameVideo ()

Private Attributes

bool _advanced_display

advanced display flag. If true, info about the video engine is shown on screen

int32

_animation_counter

counter to keep track of milliseconds since game started for animations

int8

_blend

blend flag which specifies normal alpha blending

std::stack< private_video::Context > _context_stack

stack containing context, i.e. draw flags plus coord sys. Context is pushed and popped by any GameVideo functions that clobber these settings

CoordSys

_coord_sys

current coordinate system

int32

_current_debug_TexSheet

current debug texture sheet

std::string _current_font

current font name

int32

_current_frame_diff

keeps track of the number of frames animations should increment by for the current frame

Color

_current_text_color

current text color

StillImage

_default_menu_cursor

image which is to be used as the cursor

private_video::ScreenFader

_fader

fader class which implements screen fading

Color

_fog_color

current fog color (set by SetFog())

float _fog_intensity

current fog intensity (set by SetFog())

std::map< std::string, FontProperties * > _font_map

STL map containing properties for each font (includeing TTF_Font *).

bool _fps_display

fps display flag. If true, FPS is displayed

bool _fullscreen

true if game is currently running fullscreen

float _gamma_value

Current gamma value.

int32

_height

current screen height

std::map< std::string, private_video::Image * > _images

STL map containing all the images currently being managed by the video engine.

GLuint _last_tex_ID

ID of the last texture that was bound. Used to eliminate redundant binding of textures.

Color

_light_color

current scene lighting color (essentially just modulates vertex colors of all the images)

GLuint _light_overlay

lighting overlay texture

bool _lightning_active

true if a lightning effect is active

int32

_lightning_current_time

current time of lightning effect (time since it started)

std::vector< float > _lightning_data

intensity data for lightning effect

int32

_lightning_end_time

how many milliseconds to do the lightning effect for

char _next_temp_file [9]

eight character name for temp files that increments every time you create a new one so they are always unique

int32

_num_draw_calls

keep track of number of draw calls per frame

int32

_num_tex_switches

keep track of number of texture switches per frame

std::map< std::string, ParticleEffectDef * > _particle_effect_defs

STL map containing all loaded particle effect definitions.

private_video::ParticleManager

_particle_manager

particle manager, does dirty work of managing particle effects

StillImage

_rectangle_image

Image used for rendering rectangles.

bool _scissor_enabled

is scissoring enabled or not

ScreenRect

_scissor_rect

current scissor rectangle

std::list< private_video::ShakeForce > _shake_forces

current shake forces affecting screen

VIDEO_TARGET

_target

target (QT widget or SDL window)

bool _temp_fullscreen

holds the desired fullscreen status (true=fullscreen, false=windowed). Not actually applied until ApplySettings() is called

int32

_temp_height

holds the desired screen height. Not actually applied until ApplySettings() is called

int32

_temp_width

holds the desired screen width. Not actually applied until ApplySettings() is called

std::vector< private_video::TexSheet * > _tex_sheets

vector containing all texture sheets currently being managed by the video engine

bool _text_shadow

if true, text shadow effect is enabled

bool _uses_lights

true if real lights are enabled

ScreenRect

_viewport

current viewport

int32

_width

current screen width

float _x

the current draw cursor position

int8

_x_align

x align flag which tells if images should be left, center, or right aligned

int8

_x_flip

x flip flag. true if images should be flipped horizontally

float _x_shake

X offset to shake the screen by (if any).

float _y

int8

_y_align

y align flag which tells if images should be top, center, or bottom aligned

int8

_y_flip

y flip flag. true if images should be flipped vertically

float _y_shake

Y offset to shake the screen by (if any).

Friends

class hoa_utils::Singleton< GameVideo >

class MenuWindow

class OptionBox

class private_video::FixedTexMemMgr

class private_video::GUIElement

class private_video::GUISupervisor

class private_video::ParticleSystem

class private_video::TexSheet

class private_video::VariableTexMemMgr

class RenderedString

class StillImage

class TextBox

Detailed Description

Manages all the video operations and serves as the API to the video engine.

****************************************************************************

This is one of the largest classes in the Allacrost engine. Because it is so large, the implementation of many of the methods for this class are split up into multiple .cpp source files in the video code directory.

Definition at line 197 of file video.h.

Constructor & Destructor Documentation

hoa_video::GameVideo::~GameVideo ( )

Definition at line 410 of file video.cpp.

References _font_map, _images, _particle_manager, _tex_sheets, hoa_video::private_video::ParticleManager::Destroy(), hoa_video::private_video::GUIManager, hoa_utils::Singleton< T >::SingletonDestroy(), and hoa_video::VIDEO_DEBUG.

Here is the call graph for this function:

hoa_video::GameVideo::GameVideo ( ) [private]

Member Function Documentation

bool hoa_video::GameVideo::_BindTexture ( GLuint tex_ID ) [private]

wraps a call to glBindTexture(), except it adds checking to eliminate redundant texture binding. Redundancy checks are already implemented by most drivers, but this is a double check "just in case"

Parameters:

tex_ID

integer handle to the OpenGL texture

Returns:: success/failure

Definition at line 1027 of file video.cpp.

References _last_tex_ID, and _num_tex_switches.

Referenced by _CreateBlankGLTexture(), _DrawElement(), _GenTexLine(), _GetBufferFromTexture(), ApplyLightingOverlay(), Draw(), hoa_video::private_video::ParticleSystem::Draw(), and SaveImage().

bool hoa_video::GameVideo::_CacheGlyphs	(	const uint16 *	uText,
		FontProperties *	fp
	)			`[private]`

caches glyph info and textures for rendering

Parameters:

	uText	Pointer to a unicode string holding the glyphs to cache
	fp	Pointer to the internal FontProperties class representing the font

Returns:: success/failure

Definition at line 301 of file text.cpp.

References hoa_video::FontGlyph::advance, hoa_video::FontProperties::ascent, hoa_video::FontProperties::glyph_cache, hoa_video::FontGlyph::height, hoa_video::FontGlyph::max_x, hoa_video::FontGlyph::max_y, hoa_video::FontGlyph::min_x, hoa_video::FontGlyph::min_y, hoa_utils::RoundUpPow2(), hoa_video::FontGlyph::texture, hoa_video::FontGlyph::top_y, hoa_video::FontProperties::ttf_font, hoa_video::VIDEO_DEBUG, and hoa_video::FontGlyph::width.

Referenced by RenderText().

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void hoa_video::GameVideo::_ConvertImageToGrayscale	(	const private_video::ImageLoadInfo &	src,
		private_video::ImageLoadInfo &	dst
	)			const `[private]`

Parameters:

	src	Information of a color image
	dst	ImageLoadInfo struct where the grayscale image will be stored

Definition at line 37 of file tex_mgmt.cpp.

References hoa_video::private_video::ImageLoadInfo::height, hoa_video::private_video::ImageLoadInfo::pixels, and hoa_video::private_video::ImageLoadInfo::width.

Referenced by _ReloadImagesToSheet(), and hoa_video::StillImage::EnableGrayScale().

int32 hoa_video::GameVideo::_ConvertXAlign ( int32 xalign ) [private]

converts VIDEO_DRAW_LEFT or VIDEO_DRAW_RIGHT flags to a numerical offset

Parameters:

xalign

the draw flag

Returns:: the numerical offset

Definition at line 1510 of file video.cpp.

References hoa_video::VIDEO_X_CENTER, and hoa_video::VIDEO_X_LEFT.

Referenced by hoa_video::TextBox::_DrawTextLines().

int32 hoa_video::GameVideo::_ConvertYAlign ( int32 yalign ) [private]

converts VIDEO_DRAW_TOP or VIDEO_DRAW_BOTTOM flags to a numerical offset

Parameters:

yalign

the draw flag

Returns:: the numerical offset

Definition at line 1492 of file video.cpp.

References hoa_video::VIDEO_Y_BOTTOM, and hoa_video::VIDEO_Y_CENTER.

GLuint hoa_video::GameVideo::_CreateBlankGLTexture	(	int32	width,
		int32	height
	)			`[private]`

creates a blank texture of the given width and height and returns integer used by OpenGL to refer to this texture. Returns 0xffffffff on failure.

Parameters:

	width	desired width of the texture
	height	desired height of the texture

Returns:: OpenGL ID for this texture or 0xffffffff for failure.

Definition at line 2884 of file tex_mgmt.cpp.

References _BindTexture(), _DeleteTexture(), _ShouldSmooth(), hoa_video::VIDEO_DEBUG, and hoa_video::VideoManager.

Referenced by EnablePointLights(), and ReloadTextures().

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std::string hoa_video::GameVideo::_CreateTempFilename ( const std::string & extension ) [private]

Parameters:

extension

The extension for the temp file. Although we could just save temp files without an extension, that might cause stupid bugs like DevIL refusing to load an image because it doesn't end with .png.

Returns:: name of the generated temp file

Definition at line 1374 of file video.cpp.

References _next_temp_file, and hoa_video::VIDEO_DEBUG.

TexSheet * hoa_video::GameVideo::_CreateTexSheet	(	int32	width,
		int32	height,
		private_video::TexSheetType	type,
		bool	is_static
	)			`[private]`

creates a texture sheet

Parameters:

	width	width of the sheet
	height	height of the sheet
	type	specifies what type of images this texture sheet manages (e.g. 32x32 images, 64x64 images, any type, etc)
	is_static	if true, this texture sheet is meant to manage images which are not expected to be loaded and unloaded very often

Returns:: the newly created texsheet

Definition at line 1552 of file tex_mgmt.cpp.

References hoa_utils::IsPowerOfTwo(), hoa_video::VIDEO_DEBUG, and hoa_video::private_video::VIDEO_TEXSHEET_TOTAL.

Referenced by _InsertImageInTexSheet(), CaptureScreen(), and SingletonInitialize().

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bool hoa_video::GameVideo::_DEBUG_ShowAdvancedStats ( ) [private]

function solely for debugging, which shows number of texture switches made during a frame, and other statistics useful for performance tweaking, etc.

Returns:: success/failure

Definition at line 864 of file video.cpp.

References _num_tex_switches, _particle_manager, DrawText(), hoa_video::private_video::ParticleManager::GetNumParticles(), Move(), and SetFont().

Referenced by Display().

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bool hoa_video::GameVideo::_DEBUG_ShowTexSheet ( ) [private]

Returns:: success/failure

Definition at line 1667 of file tex_mgmt.cpp.

Referenced by Display().

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bool hoa_video::GameVideo::_DeleteImage ( AnimatedImage & id ) [private]

decreases ref count of an animated image

Parameters:

image descriptor to decrease the reference count of

Returns:: success/failure

Definition at line 2067 of file tex_mgmt.cpp.

References _DeleteImage().

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bool hoa_video::GameVideo::_DeleteImage ( StillImage & id ) [private]

decreases ref count of an image

Parameters:

image descriptor to decrease the reference count of

Returns:: success/failure

Definition at line 2092 of file tex_mgmt.cpp.

References _DeleteImage(), hoa_video::private_video::TexSheet::FreeImage(), hoa_video::private_video::Image::height, hoa_video::private_video::Image::ref_count, hoa_video::private_video::Image::texture_sheet, hoa_video::VIDEO_DEBUG, and hoa_video::private_video::Image::width.

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bool hoa_video::GameVideo::_DeleteImage ( private_video::Image *const image ) [private]

decreases the reference count of an image

Parameters:

image

pointer to image

Returns:: success/failure

Definition at line 1805 of file tex_mgmt.cpp.

References _images, _RemoveImage(), _RemoveSheet(), hoa_video::private_video::Image::filename, hoa_video::private_video::TexSheet::FreeImage(), hoa_video::private_video::Image::grayscale, hoa_video::private_video::Image::height, hoa_video::private_video::Image::ref_count, hoa_video::private_video::Image::texture_sheet, hoa_video::VIDEO_DEBUG, and hoa_video::private_video::Image::width.

Referenced by _DeleteImage(), and DeleteImage().

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bool hoa_video::GameVideo::_DeleteTempTextures ( ) [private]

deletes the temporary textures from the "temp" folder that were saved by _SaveTempTextures()

Returns:: success/failure

Definition at line 3152 of file tex_mgmt.cpp.

References hoa_utils::CleanDirectory().

Referenced by ReloadTextures().

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bool hoa_video::GameVideo::_DeleteTexture ( GLuint tex_ID ) [private]

wraps a call to glDeleteTextures(), except it adds some checking related to eliminating redundant texture binding.

Parameters:

tex_ID

integer handle to the OpenGL texture

Returns:: success/failure

Definition at line 2831 of file tex_mgmt.cpp.

References _last_tex_ID.

Referenced by _CreateBlankGLTexture(), DisablePointLights(), UnloadTextures(), and hoa_video::RenderedString::~RenderedString().

bool hoa_video::GameVideo::_DrawElement	(	const private_video::ImageElement &	element,
		const Color *	color_array
	)			`[private]`

draws an image element, i.e. one image within an image descriptor which may contain multiple images

Note:: this function takes an array of vertex colors. in cases where modulation is required, copy the element.color array and modulate it, else just pass element.color as this argument.

Parameters:

	element	pointer to the image element to draw
	color_array	pointer to an 4 element array of vertex colors, modulated if necessary

Returns:: success/failure

Definition at line 145 of file draw.cpp.

Referenced by _DrawStillImage().

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bool hoa_video::GameVideo::_DrawStillImage	(	const StillImage &	img,
		const Color &	color
	)			`[private]`

helper function to DrawImage() to do the actual work of drawing an image

Parameters:

	img	static image to draw
	color	color to modulate image by

Returns:: success/failure

Definition at line 46 of file draw.cpp.

References _coord_sys, _DrawElement(), _fader, _height, _width, _x_align, _x_flip, _x_shake, _y_align, _y_flip, _y_shake, hoa_video::CoordSys::GetBottom(), hoa_video::private_video::ScreenFader::GetFadeModulation(), hoa_video::CoordSys::GetHorizontalDirection(), hoa_video::CoordSys::GetLeft(), hoa_video::CoordSys::GetRight(), hoa_video::CoordSys::GetTop(), hoa_video::CoordSys::GetVerticalDirection(), MoveRelative(), hoa_video::VIDEO_DEBUG, and hoa_video::Color::white.

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bool hoa_video::GameVideo::_DrawStillImage ( const StillImage & img ) [private]

helper function to DrawImage() to do the actual work of doing an image

Parameters:

img

static image to draw

Returns:: success/failure

Definition at line 28 of file draw.cpp.

References _light_color, _uses_lights, and hoa_video::Color::white.

Referenced by DrawImage().

bool hoa_video::GameVideo::_DrawTextHelper ( const uint16 *const uText ) [private]

does the actual work of drawing text

Parameters:

uText

Pointer to a unicode string holding the text to draw

Returns:: success/failure

Definition at line 474 of file text.cpp.

References hoa_video::CoordSys::GetHorizontalDirection(), hoa_video::CoordSys::GetVerticalDirection(), hoa_video::FontProperties::glyph_cache, hoa_video::FontProperties::ttf_font, and hoa_video::VIDEO_DEBUG.

Referenced by DrawText().

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RenderedLine * hoa_video::GameVideo::_GenTexLine	(	uint16 *	line,
		FontProperties *	fp
	)			`[private]`

generates a texture for a given line

Parameters:

	line	Pointer to a unicode string holding the text to render
	fp	Pointer to the internal FontProperties class representing the font

Returns:: the line or NULL on failure

Definition at line 115 of file text.cpp.

References _BindTexture(), _current_text_color, _GetTextShadowColor(), _text_shadow, hoa_video::FontProperties::glyph_cache, hoa_utils::RoundUpPow2(), hoa_video::FontProperties::ttf_font, and hoa_video::VIDEO_DEBUG.

Referenced by RenderText().

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void hoa_video::GameVideo::_GetBufferFromImage	(	hoa_video::private_video::ImageLoadInfo &	buffer,
		hoa_video::private_video::Image *	img
	)			const `[private]`

Pass an image (video memory) to a system memory buffer.

Parameters:

	buffer	Buffer where the pixels of the image will be stored
	img	Image to be copied

Definition at line 1348 of file tex_mgmt.cpp.

References _GetBufferFromTexture(), hoa_video::private_video::Image::height, hoa_video::private_video::ImageLoadInfo::height, hoa_video::private_video::ImageLoadInfo::pixels, hoa_video::private_video::Image::texture_sheet, hoa_video::private_video::Image::width, hoa_video::private_video::ImageLoadInfo::width, hoa_video::private_video::Image::x, and hoa_video::private_video::Image::y.

Referenced by _SaveTempTextures(), hoa_video::StillImage::EnableGrayScale(), and SaveImage().

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void hoa_video::GameVideo::_GetBufferFromTexture	(	hoa_video::private_video::ImageLoadInfo &	buffer,
		hoa_video::private_video::TexSheet *	texture
	)			const `[private]`

Pass a texture (video memory) to a system memory buffer.

Parameters:

	buffer	Buffer where the pixels of the texture will be stored
	texture	TexSheet to be copied

Definition at line 1326 of file tex_mgmt.cpp.

Referenced by _GetBufferFromImage().

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bool hoa_video::GameVideo::_GetImageInfoJpeg	(	const std::string &	file_name,
		uint32 &	rows,
		uint32 &	cols,
		uint32 &	bpp
	)			`[private]`

Get information of a Jpeg file.

Parameters:

	file_name	Name of the file, without the extension
	rows	Rows of the image
	cols	Columns of the image
	bpp	Bits per pixel of the image

Returns:: True if the process was carried out with no problem, false otherwise

Definition at line 175 of file tex_mgmt.cpp.

Referenced by GetImageInfo().

bool hoa_video::GameVideo::_GetImageInfoPng	(	const std::string &	file_name,
		uint32 &	rows,
		uint32 &	cols,
		uint32 &	bpp
	)			`[private]`

Get information of a Png file.

Parameters:

	file_name	Name of the file, without the extension
	rows	Rows of the image
	cols	Columns of the image
	bpp	Bits per pixel of the image

Returns:: True if the process was carried out with no problem, false otherwise

Definition at line 116 of file tex_mgmt.cpp.

Referenced by GetImageInfo().

Color hoa_video::GameVideo::_GetTextShadowColor ( FontProperties * fp ) [private]

retrieves the shadow color based on the current color and shadow style

Parameters:

Pointer to the internal FontProperties class representing the font

Returns:: the shadow color

Definition at line 976 of file text.cpp.

References _current_text_color, _text_shadow, hoa_video::Color::black, hoa_video::FontProperties::shadow_style, hoa_video::VIDEO_DEBUG, hoa_video::VIDEO_TEXT_SHADOW_BLACK, hoa_video::VIDEO_TEXT_SHADOW_COLOR, hoa_video::VIDEO_TEXT_SHADOW_DARK, hoa_video::VIDEO_TEXT_SHADOW_INVCOLOR, hoa_video::VIDEO_TEXT_SHADOW_LIGHT, hoa_video::VIDEO_TEXT_SHADOW_NONE, and hoa_video::Color::white.

Referenced by _GenTexLine().

TexSheet * hoa_video::GameVideo::_InsertImageInTexSheet	(	private_video::Image *	image,
		private_video::ImageLoadInfo &	load_info,
		bool	is_static
	)			`[private]`

inserts an image into a texture sheet

Parameters:

	image	pointer to the image to insert
	load_info	attributes of the image to be inserted
	is_static	Wether an image is static or not

Returns:: a new texsheet with the image in it

Definition at line 1447 of file tex_mgmt.cpp.

References _CreateTexSheet(), _tex_sheets, hoa_video::private_video::TexSheet::AddImage(), hoa_video::private_video::ImageLoadInfo::height, hoa_utils::RoundUpPow2(), hoa_video::VIDEO_DEBUG, hoa_video::private_video::VIDEO_TEXSHEET_32x32, hoa_video::private_video::VIDEO_TEXSHEET_32x64, hoa_video::private_video::VIDEO_TEXSHEET_64x64, hoa_video::private_video::VIDEO_TEXSHEET_ANY, and hoa_video::private_video::ImageLoadInfo::width.

Referenced by _LoadImageHelper(), _LoadMultiImage(), and hoa_video::StillImage::EnableGrayScale().

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bool hoa_video::GameVideo::_LoadImage ( AnimatedImage & id ) [private]

loads an animated image. Assumes that you have called AddFrame for all the frames.

Parameters:

image descriptor to load

Returns:: success/failure

Definition at line 249 of file tex_mgmt.cpp.

References _LoadImage().

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bool hoa_video::GameVideo::_LoadImage ( StillImage & id ) [private]

loads an image

Parameters:

image descriptor to load. Can specify filename, color, width, height, and static as its parameters

Returns:: success/failure

Definition at line 285 of file tex_mgmt.cpp.

References _height, _images, _LoadImageHelper(), _width, and hoa_video::VIDEO_DEBUG.

Referenced by _LoadImage(), and LoadImage().

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bool hoa_video::GameVideo::_LoadImageHelper ( StillImage & id ) [private]

does the actual work of loading an image

Parameters:

StillImage of the image to load. May specify a filename, color, width, height, and static

Returns:: success/failure

Definition at line 639 of file tex_mgmt.cpp.

References _height, _images, _InsertImageInTexSheet(), _LoadRawImage(), _width, hoa_video::private_video::ImageLoadInfo::height, hoa_video::private_video::ImageLoadInfo::pixels, hoa_video::private_video::Image::ref_count, hoa_video::VIDEO_DEBUG, and hoa_video::private_video::ImageLoadInfo::width.

Referenced by _LoadImage().

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bool hoa_video::GameVideo::_LoadMultiImage	(	std::vector< StillImage > &	images,
		const std::string &	file_name,
		const uint32 &	rows,
		const uint32 &	cols
	)			`[private]`

Loads an image file in several StillImages.

Parameters:

	images	Vector of StillImages to be loaded
	file_name	Name of the image file to read
	rows	Number of rows of StillImages
	cols	Number of columns of StillImages

Definition at line 433 of file tex_mgmt.cpp.

Referenced by LoadMultiImageFromElementsSize(), and LoadMultiImageFromNumberElements().

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bool hoa_video::GameVideo::_LoadRawImage	(	const std::string &	file_name,
		private_video::ImageLoadInfo &	load_info
	)			`[private]`

Load raw image data from a file.

Parameters:

	file_name	Filename of image to load
	load_info	Returns with the image file attributes and pixels

Returns:: success/failure

Definition at line 702 of file tex_mgmt.cpp.

References _LoadRawImageJpeg(), and _LoadRawImagePng().

Referenced by _LoadImageHelper(), _LoadMultiImage(), and _ReloadImagesToSheet().

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bool hoa_video::GameVideo::_LoadRawImageJpeg	(	const std::string &	file_name,
		private_video::ImageLoadInfo &	load_info
	)			`[private]`

Load raw image data from a JPG file.

Parameters:

	file_name	Filename of image to load
	load_info	Returns with the image file attributes and pixels

Returns:: success/failure

Definition at line 868 of file tex_mgmt.cpp.

References hoa_video::private_video::ImageLoadInfo::height, hoa_video::private_video::ImageLoadInfo::pixels, hoa_video::VIDEO_DEBUG, and hoa_video::private_video::ImageLoadInfo::width.

Referenced by _LoadRawImage().

bool hoa_video::GameVideo::_LoadRawImagePng	(	const std::string &	file_name,
		private_video::ImageLoadInfo &	load_info
	)			`[private]`

Load raw image data from a PNG file.

Parameters:

	file_name	Filename of image to load
	load_info	Returns with the image file attributes and pixels

Returns:: success/failure

Definition at line 727 of file tex_mgmt.cpp.

References hoa_video::private_video::ImageLoadInfo::height, hoa_video::private_video::ImageLoadInfo::pixels, hoa_video::VIDEO_DEBUG, and hoa_video::private_video::ImageLoadInfo::width.

Referenced by _LoadRawImage().

void hoa_video::GameVideo::_PopContext ( ) [private]

restores coord system, draw flags, and transformations

Definition at line 1451 of file video.cpp.

Referenced by _DEBUG_ShowTexSheet(), Display(), hoa_video::TextBox::Draw(), hoa_video::OptionBox::Draw(), hoa_video::MenuWindow::Draw(), DrawFPS(), DrawText(), and PopState().

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void hoa_video::GameVideo::_PushContext ( ) [private]

saves coord system, draw flags, and transformations

Definition at line 1420 of file video.cpp.

Referenced by _DEBUG_ShowTexSheet(), Display(), hoa_video::TextBox::Draw(), hoa_video::OptionBox::Draw(), hoa_video::MenuWindow::Draw(), DrawFPS(), DrawText(), and PushState().

bool hoa_video::GameVideo::_ReloadImagesToSheet ( private_video::TexSheet * tex_sheet ) [private]

loop through all currently loaded images and if they belong to the given tex sheet, reload them into it

Parameters:

tex_sheet

pointer to the tex sheet whose images we want to load

Returns:: success/failure

Definition at line 2988 of file tex_mgmt.cpp.

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bool hoa_video::GameVideo::_RemoveImage ( private_video::Image * image_to_remove ) [private]

removes the image from the STL map with the same pointer as the one passed in. Returns false on failure

Parameters:

image_to_remove

pointer to the image we want to remove

Returns:: success/failure

Definition at line 2157 of file tex_mgmt.cpp.

References _images.

Referenced by _DeleteImage().

bool hoa_video::GameVideo::_RemoveSheet ( private_video::TexSheet * sheet_to_remove ) [private]

removes a texture sheet from our vector of sheets and deletes it

Parameters:

sheet_to_remove

pointer to the sheet we want to remove

Returns:: success/failure

Definition at line 1850 of file tex_mgmt.cpp.

References _tex_sheets.

Referenced by _DeleteImage(), and CaptureScreen().

void hoa_video::GameVideo::_RGBAToRGB	(	const private_video::ImageLoadInfo &	src,
		private_video::ImageLoadInfo &	dst
	)			const `[private]`

Converts a RGBA buffer to a RGB one.

Parameters:

	src	Information of a RGBA buffer
	dst	ImageLoadInfo struct where the RGB buffer will be stored

Definition at line 63 of file tex_mgmt.cpp.

References hoa_video::private_video::ImageLoadInfo::height, hoa_video::private_video::ImageLoadInfo::pixels, and hoa_video::private_video::ImageLoadInfo::width.

Referenced by SaveImage().

float hoa_video::GameVideo::_RoundForce ( float force ) [private]

rounds a force value to the nearest integer. Rounding is based on probability. For example the number 2.85 has an 85% chance of rounding to 3 and a 15% chance of rounding to 2

Parameters:

force

The force to round

Returns:: the rounded force value

Definition at line 146 of file shake.cpp.

Referenced by _UpdateShake().

bool hoa_video::GameVideo::_SaveJpeg	(	const std::string &	file_name,
		hoa_video::private_video::ImageLoadInfo &	info
	)			const `[private]`

Saves Raw data in a Jpeg file.

Parameters:

	file_name	Name of the file, without the extension
	info	Structure of the information to store

Returns:: True if the process was carried out with no problem, false otherwise

Definition at line 1028 of file tex_mgmt.cpp.

References hoa_video::private_video::ImageLoadInfo::height, hoa_video::private_video::ImageLoadInfo::pixels, hoa_video::VIDEO_DEBUG, and hoa_video::private_video::ImageLoadInfo::width.

Referenced by MakeScreenshot(), and SaveImage().

bool hoa_video::GameVideo::_SavePng	(	const std::string &	file_name,
		hoa_video::private_video::ImageLoadInfo &	info
	)			const `[private]`

Saves Raw data in a Png file.

Parameters:

	file_name	Name of the file, without the extension
	info	Structure of the information to store

Returns:: True if the process was carried out with no problem, false otherwise

Definition at line 963 of file tex_mgmt.cpp.

References hoa_video::private_video::ImageLoadInfo::height, hoa_video::private_video::ImageLoadInfo::pixels, and hoa_video::private_video::ImageLoadInfo::width.

Referenced by _SaveTempTextures(), and SaveImage().

bool hoa_video::GameVideo::_SaveTempTextures ( ) [private]

Returns:: success/failure

Definition at line 3122 of file tex_mgmt.cpp.

References _GetBufferFromImage(), _images, _SavePng(), hoa_video::private_video::Image::filename, and hoa_video::private_video::Image::tags.

Referenced by UnloadTextures().

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int32 hoa_video::GameVideo::_ScreenCoordX ( float x ) [private]

takes an x value and converts it into screen coordinates

Returns:: the converted value

Definition at line 1640 of file video.cpp.

References _coord_sys, _width, hoa_video::CoordSys::GetLeft(), and hoa_video::CoordSys::GetRight().

Referenced by CalculateScreenRect().

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int32 hoa_video::GameVideo::_ScreenCoordY ( float y ) [private]

takes an x value and converts it into screen coordinates

Returns:: the converted value

Definition at line 1656 of file video.cpp.

References _coord_sys, _height, hoa_video::CoordSys::GetBottom(), and hoa_video::CoordSys::GetTop().

Referenced by CalculateScreenRect().

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bool hoa_video::GameVideo::_ShouldSmooth ( ) [private]

Whether textures should be smoothed for non natural resolution.

Definition at line 1672 of file video.cpp.

References _height, _width, hoa_video::VIDEO_STANDARD_RES_HEIGHT, and hoa_video::VIDEO_STANDARD_RES_WIDTH.

Referenced by _CreateBlankGLTexture().

void hoa_video::GameVideo::_UpdateShake ( int32 frame_time ) [private]

updates the shaking effect

Parameters:

frame_time

elapsed time for the current rendering frame

Definition at line 165 of file shake.cpp.

References _RoundForce(), _shake_forces, _x_shake, _y_shake, hoa_video::private_video::ShakeForce::current_time, hoa_video::private_video::ShakeForce::end_time, hoa_video::Interpolator::GetValue(), hoa_video::private_video::ShakeForce::interpolator, hoa_video::RandomFloat(), hoa_video::Interpolator::Update(), and hoa_video::VIDEO_TIME_BETWEEN_SHAKE_UPDATES.

Referenced by Display().

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ParticleEffectID hoa_video::GameVideo::AddParticleEffect	(	const std::string &	particle_effect_filename,
		float	x,
		float	y,
		bool	reload = `false`
	)

add a particle effect at the given point x and y

Parameters:

	particle_effect_filename	- file containing the particle effect definition
	x	- X coordinate of the effect
	y	- Y coordinate of the effect
	reload	- reload the effect from file if it already exists

Returns:: id corresponding to the loaded particle effect

Note:: set the reload parameter to true to reload the effect definition file every time the effect is played. This is useful if you are working on an effect and want to see how it looks. When we actually release the game, reload should be false since it adds some cost to the loading

bool hoa_video::GameVideo::ApplyLightingOverlay ( )

Returns:: success/failure

Definition at line 1194 of file video.cpp.

References _BindTexture(), _coord_sys, _height, _light_overlay, _width, hoa_video::CoordSys::GetBottom(), hoa_video::CoordSys::GetLeft(), hoa_video::CoordSys::GetRight(), hoa_video::CoordSys::GetTop(), and SetCoordSys().

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bool hoa_video::GameVideo::ApplySettings ( )

applies any changes to video settings like resolution and fullscreen. If the changes fail, then this function returns false, and the video settings are reset to whatever the last working setting was.

Returns:: success/failure

Definition at line 555 of file video.cpp.

References _fog_color, _fog_intensity, _fullscreen, _height, _target, _temp_fullscreen, _temp_height, _temp_width, _width, EnableFog(), ReloadTextures(), UnloadTextures(), hoa_video::VIDEO_DEBUG, hoa_video::VIDEO_TARGET_QT_WIDGET, and hoa_video::VIDEO_TARGET_SDL_WINDOW.

Referenced by hoa_input::GameInput::_KeyEventHandler(), hoa_boot::BootMode::_OnVideoMode(), hoa_boot::BootMode::_SetResolution(), hoa_editor::Grid::resizeGL(), and SingletonInitialize().

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ScreenRect hoa_video::GameVideo::CalculateScreenRect	(	float	left,
		float	right,
		float	bottom,
		float	top
	)

Returns:: the screen rectangle

Definition at line 1603 of file video.cpp.

References _ScreenCoordX(), _ScreenCoordY(), hoa_video::ScreenRect::height, hoa_video::ScreenRect::left, hoa_video::ScreenRect::top, and hoa_video::ScreenRect::width.

Referenced by SetScissorRect(), and hoa_video::MenuWindow::Update().

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int32 hoa_video::GameVideo::CalculateTextWidth	(	const std::string &	font_name,
		const std::string &	text
	)

calculates the width of the given text if it were rendered with the given font If an invalid font name is passed, returns -1

Parameters:

	font_name	the font to use
	text	the text string in multi-byte character format

Returns:: width of the given text

Definition at line 870 of file text.cpp.

References _font_map, and IsValidFont().

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int32 hoa_video::GameVideo::CalculateTextWidth	(	const std::string &	font_name,
		const hoa_utils::ustring &	text
	)

calculates the width of the given text if it were rendered with the given font If an invalid font name is passed, returns -1

Parameters:

	font_name	the font to use
	text	the text string in unicode

Returns:: width of the given text

Definition at line 853 of file text.cpp.

References _font_map, hoa_utils::ustring::c_str(), and IsValidFont().

Referenced by hoa_video::TextBox::_AddLine(), hoa_video::TextBox::_DrawTextLines(), and hoa_video::OptionBox::Draw().

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bool hoa_video::GameVideo::CaptureScreen ( StillImage & id )

captures the contents of the screen and saves it to an image descriptor

Parameters:

image descriptor to capture to

Returns:: success/failure

Definition at line 1260 of file video.cpp.

References _CreateTexSheet(), _height, _images, _RemoveSheet(), _width, hoa_video::private_video::TexSheet::CopyScreenRect(), hoa_video::private_video::TexMemMgr::Insert(), hoa_video::private_video::Image::ref_count, hoa_utils::RoundUpPow2(), hoa_video::private_video::TexSheet::tex_mem_manager, hoa_video::VIDEO_DEBUG, and hoa_video::private_video::VIDEO_TEXSHEET_ANY.

Referenced by hoa_pause::PauseMode::PauseMode(), hoa_quit::QuitMode::QuitMode(), and hoa_shop::ShopMode::ShopMode().

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bool hoa_video::GameVideo::Clear ( const Color & c )

Clears the screen to a specific color.

Parameters:

The color to set the cleared screen to.

Returns:: success/failure

Definition at line 691 of file video.cpp.

References _num_tex_switches, and SetViewport().

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bool hoa_video::GameVideo::Clear ( )

Clears the contents of the current screen.

Returns:: success/failure

This method should be called at the beginning of every frame, before any draw operations are performed.

Definition at line 676 of file video.cpp.

References _light_color, _uses_lights, and hoa_video::Color::black.

Referenced by main(), hoa_editor::Grid::paintGL(), and SingletonInitialize().

void hoa_video::GameVideo::DEBUG_NextTexSheet ( )

These cycle through the currently loaded texture sheets so they can be viewed on screen.

Definition at line 2669 of file tex_mgmt.cpp.

References _current_debug_TexSheet, and _tex_sheets.

Referenced by hoa_input::GameInput::_KeyEventHandler().

void hoa_video::GameVideo::DEBUG_PrevTexSheet ( )

Definition at line 2687 of file tex_mgmt.cpp.

References _current_debug_TexSheet, and _tex_sheets.

bool hoa_video::GameVideo::DeleteImage ( ImageDescriptor & id )

decreases ref count of an image (static or animated)

Parameters:

image descriptor to decrease the reference count of

Returns:: success/failure

Definition at line 2047 of file tex_mgmt.cpp.

References _DeleteImage().

Referenced by hoa_video::MenuWindow::_RecreateImage(), hoa_video::OptionBox::ClearOptions(), hoa_video::private_video::ParticleSystem::Destroy(), hoa_video::MenuWindow::Destroy(), Display(), hoa_global::GameGlobal::SetLocation(), hoa_battle::private_battle::ActionWindow::~ActionWindow(), hoa_battle::private_battle::BattleActor::~BattleActor(), hoa_battle::private_battle::BattleCharacterActor::~BattleCharacterActor(), hoa_battle::private_battle::BattleEnemyActor::~BattleEnemyActor(), hoa_battle::BattleMode::~BattleMode(), hoa_boot::BootMode::~BootMode(), hoa_menu::private_menu::CharacterWindow::~CharacterWindow(), hoa_menu::private_menu::EquipWindow::~EquipWindow(), hoa_video::private_video::GUISupervisor::~GUISupervisor(), hoa_map::private_map::MapSprite::~MapSprite(), hoa_menu::MenuMode::~MenuMode(), hoa_pause::PauseMode::~PauseMode(), hoa_quit::QuitMode::~QuitMode(), hoa_shop::ShopMode::~ShopMode(), hoa_menu::private_menu::StatusWindow::~StatusWindow(), and hoa_map::private_map::VirtualSprite::~VirtualSprite().

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void hoa_video::GameVideo::DeleteMenuSkin ( std::string & skin_name ) [inline]

Deletes a menu skin that has been loaded.

Parameters:

skin_name

The name of the loaded menu skin that should be removed

Before you call this function, you must delete any and all MenuWindow objects which make use of this skin, or change the skin used by those objects. Failing to do so will result in a warning message being printed and the skin will not be deleted. The function will also print a warning message and exit if it could not find a skin referred to by the argument name.

Definition at line 861 of file video.h.

References hoa_video::private_video::GUIManager.

void hoa_video::GameVideo::DisableFog ( )

disables fog

Definition at line 1143 of file video.cpp.

References _fog_intensity.

Referenced by hoa_boot::BootMode::_EndOpeningAnimation(), and hoa_boot::BootMode::Reset().

void hoa_video::GameVideo::DisablePointLights ( )

disables point lights

Definition at line 1176 of file video.cpp.

References _DeleteTexture(), _light_overlay, and _uses_lights.

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void hoa_video::GameVideo::DisableSceneLighting ( )

disables scene lighting

Definition at line 1079 of file video.cpp.

References _light_color, and hoa_video::Color::white.

Referenced by hoa_battle::private_battle::FinishWindow::Draw().

bool hoa_video::GameVideo::Display ( int32 frame_time )

call at end of every frame

Parameters:

frame_time

The number of milliseconds that have passed since the last frame.

Returns:: success/failure

Definition at line 727 of file video.cpp.

References _advanced_display, _animation_counter, _current_frame_diff, _DEBUG_ShowAdvancedStats(), _DEBUG_ShowTexSheet(), _fader, _fps_display, _lightning_active, _lightning_current_time, _lightning_end_time, _particle_manager, _PopContext(), _PushContext(), _UpdateShake(), DeleteImage(), DrawFPS(), DrawImage(), hoa_video::private_video::ScreenFader::GetFadeOverlayColor(), LoadImage(), Move(), PopState(), PushState(), hoa_video::StillImage::SetColor(), SetCoordSys(), hoa_video::StillImage::SetDimensions(), SetDrawFlags(), hoa_video::private_video::ScreenFader::ShouldUseFadeOverlay(), hoa_video::private_video::ScreenFader::Update(), hoa_video::private_video::ParticleManager::Update(), hoa_video::VIDEO_ANIMATION_FRAME_PERIOD, hoa_video::VIDEO_DEBUG, hoa_video::VIDEO_X_LEFT, and hoa_video::VIDEO_Y_BOTTOM.

Referenced by main(), and SingletonInitialize().

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bool hoa_video::GameVideo::Draw	(	const RenderedLine &	line,
		int32	tex_index
	)

Draws a rendered line object.

Parameters:

	line	The rendered line
	tex_index	Whether main or shadow texture

Definition at line 1049 of file text.cpp.

References _BindTexture(), hoa_video::RenderedLine::height, hoa_video::RenderedLine::NUM_TEXTURES, hoa_video::RenderedLine::texture, hoa_video::RenderedLine::u, hoa_video::RenderedLine::v, hoa_video::VIDEO_DEBUG, and hoa_video::RenderedLine::width.

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bool hoa_video::GameVideo::Draw ( const RenderedString & string )

Draws a rendered string object.

Parameters:

string

The rendered string

Definition at line 1127 of file text.cpp.

References _coord_sys, _x_align, hoa_video::CoordSys::GetHorizontalDirection(), hoa_video::RenderedString::GetLineSkip(), hoa_video::RenderedString::GetShadowX(), hoa_video::RenderedString::GetShadowY(), hoa_video::CoordSys::GetVerticalDirection(), hoa_video::RenderedString::GetWidth(), hoa_video::RenderedString::lines, hoa_video::RenderedLine::MAIN_TEXTURE, MoveRelative(), and hoa_video::RenderedLine::SHADOW_TEXTURE.

Referenced by hoa_video::RenderedString::Draw().

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void hoa_video::GameVideo::DrawFPS ( uint32 frame_time )

Updates the FPS counter and draws the current average FPS to the screen The number of milliseconds that have expired since the last frame was drawn.

Definition at line 342 of file draw.cpp.

References _PopContext(), _PushContext(), hoa_video::private_video::GUISupervisor::DrawFPS(), and hoa_video::private_video::GUIManager.

Referenced by Display().

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bool hoa_video::GameVideo::DrawFullscreenOverlay ( const Color & color )

draws a full screen overlay of the given color

Note:: This is very slow, so use sparingly!

Returns:: success/failure

Definition at line 1767 of file video.cpp.

References DrawImage(), LoadImage(), Move(), PopState(), PushState(), SetCoordSys(), hoa_video::StillImage::SetDimensions(), SetDrawFlags(), hoa_video::VIDEO_BLEND, hoa_video::VIDEO_X_LEFT, and hoa_video::VIDEO_Y_BOTTOM.

Referenced by DrawLightning().

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void hoa_video::GameVideo::DrawGrid	(	float	x,
		float	y,
		float	x_step,
		float	y_step,
		const Color &	c
	)

Note:: xMax and yMax are not inputs to the function- they are taken from the current coord sys

Parameters:

	x	x coordinate to start grid at
	y	y coordinate to start grid at
	x_step	width of grid squares
	y_step	height of grid squares
	c	color of the grid

Definition at line 1809 of file video.cpp.

References _coord_sys, hoa_video::CoordSys::GetBottom(), hoa_video::CoordSys::GetLeft(), hoa_video::CoordSys::GetRight(), hoa_video::CoordSys::GetTop(), Move(), PopState(), and PushState().

Referenced by hoa_editor::Grid::paintGL().

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bool hoa_video::GameVideo::DrawHalo	(	const StillImage &	id,
		float	x,
		float	y,
		const Color &	color = `Color(1.0f, 1.0f, 1.0f, 1.0f)`
	)

draws a halo at the given spot

Parameters:

	id	image descriptor for the halo image
	x	x coordinate of halo
	y	y coordinate of halo
	color	color of halo

Returns:: success/failure

Definition at line 304 of file draw.cpp.

References _blend, DrawImage(), Move(), PopMatrix(), PushMatrix(), and hoa_video::VIDEO_BLEND_ADD.

Referenced by DrawLight().

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bool hoa_video::GameVideo::DrawImage	(	const ImageDescriptor &	id,
		const Color &	color
	)

draws an image which is modulated by a custom color

Parameters:

	id	image descriptor to draw (either StillImage or AnimatedImage)
	color	Color used for modulating the image

Returns:: success/failure

Definition at line 372 of file draw.cpp.

References _DrawStillImage(), hoa_video::AnimatedImage::GetCurrentFrameIndex(), and hoa_video::AnimatedImage::GetFrame().

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bool hoa_video::GameVideo::DrawImage ( const ImageDescriptor & id )

draws an image which is modulated by the scene's light color

Parameters:

image descriptor to draw (either StillImage or AnimatedImage)

Returns:: success/failure

Definition at line 356 of file draw.cpp.

References _DrawStillImage(), hoa_video::AnimatedImage::GetCurrentFrameIndex(), and hoa_video::AnimatedImage::GetFrame().

Referenced by hoa_boot::BootMode::_AnimateLogo(), _DEBUG_ShowTexSheet(), hoa_battle::private_battle::ActionWindow::_DrawActionSelection(), hoa_boot::BootMode::_DrawBackgroundItems(), hoa_battle::BattleMode::_DrawBackgroundVisuals(), hoa_menu::MenuMode::_DrawBottomMenu(), hoa_battle::BattleMode::_DrawBottomMenu(), hoa_battle::BattleMode::_DrawTimeMeter(), Display(), hoa_shop::private_shop::ObjectInfoWindow::Draw(), hoa_shop::ShopMode::Draw(), hoa_quit::QuitMode::Draw(), hoa_pause::PauseMode::Draw(), hoa_video::OptionBox::Draw(), hoa_video::MenuWindow::Draw(), hoa_menu::private_menu::EquipWindow::Draw(), hoa_menu::private_menu::StatusWindow::Draw(), hoa_menu::private_menu::InventoryWindow::Draw(), hoa_menu::private_menu::CharacterWindow::Draw(), hoa_menu::MenuMode::Draw(), hoa_map::private_map::EnemySprite::Draw(), hoa_map::private_map::MapSprite::Draw(), hoa_map::private_map::VirtualSprite::Draw(), hoa_map::private_map::PhysicalObject::Draw(), hoa_map::MapMode::Draw(), hoa_video::ImageDescriptor::Draw(), DrawFullscreenOverlay(), DrawHalo(), hoa_battle::private_battle::BattleCharacterActor::DrawPortrait(), DrawRectangle(), hoa_battle::private_battle::BattleEnemyActor::DrawSprite(), hoa_battle::private_battle::BattleCharacterActor::DrawSprite(), hoa_battle::private_battle::BattleCharacterActor::DrawStatus(), hoa_battle::private_battle::BattleActor::DrawTimePortrait(), and hoa_editor::Grid::paintGL().

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bool hoa_video::GameVideo::DrawLight	(	const StillImage &	id,
		float	x,
		float	y,
		const Color &	color = `Color(1.0f, 1.0f, 1.0f, 1.0f)`
	)

draws a real light at the given spot

Parameters:

	id	image descriptor for the light mask
	x	x coordinate of light
	y	y coordinate of light
	color	color of light

Returns:: success/failure

Definition at line 325 of file draw.cpp.

References _uses_lights, DrawHalo(), and hoa_video::VIDEO_DEBUG.

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bool hoa_video::GameVideo::DrawLightning ( )

call this every frame to draw any lightning effects. You should make sure to place this call in an appropriate spot. In particular, you should draw the lightning before drawing the GUI.

Returns:: success/failure

Definition at line 1738 of file video.cpp.

References _lightning_active, _lightning_current_time, _lightning_data, and DrawFullscreenOverlay().

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bool hoa_video::GameVideo::DrawParticleEffects ( )

draws all active particle effects

Returns:: success/failure

Definition at line 73 of file effects.cpp.

References _particle_manager, and hoa_video::private_video::ParticleManager::Draw().

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void hoa_video::GameVideo::DrawRectangle	(	const float	width,
		const float	height,
		const Color &	color
	)

Parameters:

	width	Width of the rectangle.
	height	Height of the rectangle.
	color	Color to paint the rectangle.

Definition at line 1863 of file video.cpp.

References hoa_video::StillImage::_elements, _rectangle_image, DrawImage(), and hoa_video::VideoManager.

Referenced by hoa_battle::private_battle::BattleCharacterActor::DrawStatus().

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bool hoa_video::GameVideo::DrawText ( const hoa_utils::ustring & uText )

unicode version of DrawText(). This should be used for anything in the game which might need to be localized (game dialogue, interface text, etc.)

Parameters:

uText

unicode text string to draw

Returns:: success/failure

Definition at line 639 of file text.cpp.

References _coord_sys, _current_font, _current_text_color, _DrawTextHelper(), _font_map, _PopContext(), _PushContext(), _text_shadow, hoa_video::Color::black, hoa_utils::ustring::empty(), hoa_video::CoordSys::GetHorizontalDirection(), hoa_video::CoordSys::GetVerticalDirection(), hoa_utils::ustring::length(), hoa_video::FontProperties::line_skip, MoveRelative(), SetTextColor(), hoa_video::FontProperties::shadow_style, hoa_video::FontProperties::shadow_x, hoa_video::FontProperties::shadow_y, hoa_video::FontProperties::ttf_font, hoa_video::VIDEO_DEBUG, hoa_video::VIDEO_TEXT_SHADOW_BLACK, hoa_video::VIDEO_TEXT_SHADOW_COLOR, hoa_video::VIDEO_TEXT_SHADOW_DARK, hoa_video::VIDEO_TEXT_SHADOW_INVCOLOR, hoa_video::VIDEO_TEXT_SHADOW_LIGHT, hoa_video::VIDEO_TEXT_SHADOW_NONE, and hoa_video::Color::white.

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bool hoa_video::GameVideo::DrawText ( const std::string & text )

non-unicode version of DrawText(). Only use this for debug output or other things which don't have to be localized

Parameters:

text

text string to draw

Returns:: success/failure

bool hoa_video::GameVideo::EnableFog	(	const Color &	color,
		float	intensity
	)

sets fog parameters

Parameters:

	color	Color of the fog (alpha should be 1.0)
	intensity	Intensity of fog from 0.0f to 1.0f

Returns:: success/failure

Definition at line 1100 of file video.cpp.

References _fog_color, _fog_intensity, hoa_video::Color::GetColors(), and hoa_video::VIDEO_DEBUG.

Referenced by hoa_boot::BootMode::_AnimateLogo(), and ApplySettings().

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bool hoa_video::GameVideo::EnablePointLights ( )

call if this map uses real lights

Returns:: always returns true

Definition at line 1164 of file video.cpp.

References _CreateBlankGLTexture(), _light_overlay, and _uses_lights.

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bool hoa_video::GameVideo::EnableSceneLighting ( const Color & color )

turn on the ligt color for the scene

Parameters:

color

the light color to use

Returns:: success/failure

Definition at line 1062 of file video.cpp.

References _light_color, and hoa_video::VIDEO_DEBUG.

Referenced by hoa_battle::BattleMode::Draw().

void hoa_video::GameVideo::EnableScissoring ( bool enable )

Parameters:

enable

pass true to turn on scissoring, false to disable

Definition at line 1568 of file video.cpp.

References _scissor_enabled.

Referenced by hoa_video::TextBox::_DrawTextLines(), hoa_video::private_video::ParticleManager::Draw(), hoa_video::OptionBox::Draw(), hoa_video::MenuWindow::Draw(), hoa_boot::BootMenu::Draw(), and hoa_boot::CreditsScreen::Draw().

void hoa_video::GameVideo::EnableTextShadow ( bool enable )

enables/disables text shadowing

Parameters:

enable

pass true to enable, false to disable

Definition at line 887 of file text.cpp.

References _text_shadow.

Referenced by SingletonInitialize().

void hoa_video::GameVideo::FadeScreen	(	const Color &	color,
		float	fade_time
	)

Begins a screen fade.

Parameters:

	color	- color to fade to.
	fade_time	- the fade will last this number of seconds

Returns:: True if fade was successful, false otherwise.

Definition at line 152 of file fade.cpp.

References _fader, and hoa_video::private_video::ScreenFader::FadeTo().

Referenced by hoa_boot::BootMode::_OnLoadGame(), hoa_boot::BootMode::_OnNewGame(), and hoa_boot::BootMode::Update().

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const CoordSys& hoa_video::GameVideo::GetCoordSys ( ) const [inline]

return a reference to the coordinates system

Returns:: Reference to the coordinates system

Definition at line 280 of file video.h.

References _coord_sys.

StillImage * hoa_video::GameVideo::GetDefaultCursor ( )

returns the cursor image

Returns:: the cursor image

Definition at line 1536 of file video.cpp.

References _default_menu_cursor, and hoa_video::StillImage::GetWidth().

Referenced by hoa_video::OptionBox::Draw().

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void hoa_video::GameVideo::GetDrawPosition	(	float &	x,
		float &	y
	)

Gets the location of the draw cursor.

Parameters:

	x	stores x position of the cursor
	y	stores y position of the cursor

Definition at line 917 of file video.cpp.

References _x, and _y.

std::string hoa_video::GameVideo::GetFont ( ) const

get name of current font

Returns:: string containing the name of the font

Definition at line 97 of file text.cpp.

References _current_font.

FontProperties * hoa_video::GameVideo::GetFontProperties ( const std::string & font_name )

Get the font properties for a previously loaded font.

Parameters:

font_name

The referred name of the loaded font (e.g. "courier24").

Returns:: A pointer to the FontProperties object with the requested data, or NULL if an error occurred.

Definition at line 71 of file text.cpp.

References _font_map, IsValidFont(), and hoa_video::VIDEO_DEBUG.

Referenced by hoa_video::OptionBox::SetFont().

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int32 hoa_video::GameVideo::GetFrameChange ( ) [inline]

Returns:: the number of nimations frames passed since last GameVideo::Display() call

Definition at line 789 of file video.h.

References _current_frame_diff.

Referenced by hoa_video::AnimatedImage::Update().

float hoa_video::GameVideo::GetGamma ( )

Returns the gamma value.

Returns:: the gamma value

Definition at line 1354 of file video.cpp.

References _gamma_value.

Referenced by hoa_boot::BootMode::_OnBrightnessLeft(), hoa_boot::BootMode::_OnBrightnessRight(), hoa_boot::BootMode::_SaveSettingsFile(), and hoa_boot::BootMode::_UpdateVideoOptions().

int32 hoa_video::GameVideo::GetHeight ( ) const [inline]

returns height, (whatever was set with SetResolution)

Returns:: height of the screen

Definition at line 275 of file video.h.

References _height.

Referenced by hoa_boot::BootMode::_OnResolution1024x768(), hoa_boot::BootMode::_OnResolution640x480(), hoa_boot::BootMode::_OnResolution800x600(), hoa_boot::BootMode::_SaveSettingsFile(), hoa_boot::BootMode::_UpdateVideoOptions(), hoa_shop::ShopMode::Draw(), hoa_quit::QuitMode::Draw(), hoa_pause::PauseMode::Draw(), hoa_menu::MenuMode::Draw(), and hoa_editor::Grid::paintGL().

bool hoa_video::GameVideo::GetImageInfo	(	const std::string &	file_name,
		uint32 &	rows,
		uint32 &	cols,
		uint32 &	bpp
	)

Get information of an image file.

Parameters:

	file_name	Name of the file, without the extension
	rows	Rows of the image
	cols	Columns of the image
	bpp	Bits per pixel of the image

Returns:: True if the process was carried out with no problem, false otherwise

Definition at line 87 of file tex_mgmt.cpp.

References _GetImageInfoJpeg(), _GetImageInfoPng(), and hoa_video::VIDEO_DEBUG.

Referenced by LoadMultiImageFromElementsSize(), and LoadMultiImageFromNumberElements().

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int32 hoa_video::GameVideo::GetNumParticles ( )

get number of live particles

Returns:: the number of live particles in the system

Definition at line 108 of file effects.cpp.

References _particle_manager, and hoa_video::private_video::ParticleManager::GetNumParticles().

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ParticleEffect * hoa_video::GameVideo::GetParticleEffect ( ParticleEffectID id )

get pointer to an effect given its ID

Returns:: the particle effect with the given ID

Definition at line 97 of file effects.cpp.

References _particle_manager, and hoa_video::private_video::ParticleManager::GetEffect().

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void hoa_video::GameVideo::GetPixelSize	(	double &	x,
		double &	y
	)			`[inline]`

Return the pixel size expressed coordinate system units.

Returns:: Pixel size expressed in cordinate system units

Parameters:

	x	Horizontal resolution
	x	Vertical resolution

Definition at line 292 of file video.h.

References _coord_sys, _height, _width, hoa_video::CoordSys::GetBottom(), hoa_video::CoordSys::GetLeft(), hoa_video::CoordSys::GetRight(), and hoa_video::CoordSys::GetTop().

Referenced by hoa_map::MapMode::_CalculateDrawInfo().

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Color & hoa_video::GameVideo::GetSceneLightingColor ( )

returns the scene lighting color

Returns:: the light color used in the scene

Definition at line 1088 of file video.cpp.

References _light_color.

Referenced by hoa_video::private_video::ParticleSystem::Draw().

ScreenRect hoa_video::GameVideo::GetScissorRect ( ) [inline]

returns scissor rect

Returns:: the scissor rectangle

Definition at line 383 of file video.h.

References _scissor_rect.

Referenced by hoa_video::OptionBox::Draw(), and hoa_video::MenuWindow::Draw().

Color hoa_video::GameVideo::GetTextColor ( ) const

get current text color

Returns:: the color fo the text

Definition at line 107 of file text.cpp.

References _current_text_color.

Referenced by hoa_video::TextBox::_DrawTextLines(), and hoa_video::TextBox::Draw().

int32 hoa_video::GameVideo::GetWidth ( ) const [inline]

returns width, (whatever was set with SetResolution)

Returns:: width of the screen

Definition at line 270 of file video.h.

References _width.

bool hoa_video::GameVideo::IsFading ( )

Determines if a fade is currently occurring.

Returns:: True if screen fade is currently in progress, false otherwise.

Definition at line 162 of file fade.cpp.

References _fader, and hoa_video::private_video::ScreenFader::IsFading().

Referenced by hoa_boot::BootMode::Update().

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bool hoa_video::GameVideo::IsFullscreen ( )

returns true if game is in fullscreen mode

Returns:: true if in fullscreen mode, false if in windowed mode

Definition at line 808 of file video.cpp.

References _fullscreen.

Referenced by hoa_boot::BootMode::_SaveSettingsFile(), and hoa_boot::BootMode::_UpdateVideoOptions().

bool hoa_video::GameVideo::IsMenuSkinAvailable ( std::string & skin_name ) const [inline]

Returns true if there is a menu skin avialable corresponding to the argument name.

Definition at line 840 of file video.h.

References hoa_video::private_video::GUIManager.

bool hoa_video::GameVideo::IsScissoringEnabled ( ) [inline]

returns true if scissoring's enabled

Returns:: true if enabled, false if not

Definition at line 358 of file video.h.

References _scissor_enabled.

Referenced by hoa_video::OptionBox::Draw(), and hoa_video::MenuWindow::Draw().

bool hoa_video::GameVideo::IsShaking ( )

returns true if screen is shaking

Returns:: true if the screen is shaking, false if it's not

Definition at line 131 of file shake.cpp.

References _shake_forces.

bool hoa_video::GameVideo::IsValidFont ( const std::string & name ) [inline]

Returns true if a font has already been successfully loaded.

Parameters:

name

The name which to refer to the loaded font (e.g. "courier24").

Returns:: True if font is valid, false if it is not.

Definition at line 479 of file video.h.

References _font_map.

Referenced by CalculateTextWidth(), and GetFontProperties().

bool hoa_video::GameVideo::LoadAnimatedImageFromElementsSize	(	AnimatedImage &	image,
		const std::string &	file_name,
		const uint32	rows,
		const uint32	cols
	)

Loads a MultiImage in an AnimatedImage as frames. This function loads an image and cut it in pieces, loading each of that on frames of an AnimatedImage.

Parameters:

	image	AnimatedImage where the cut images will be loaded.
	file_name	Name of the file.
	rows	Number of rows of sub-images in the MultiImage.
	cols	Number of columns of sub-images in the MultiImage.

Returns:: success/failure

Definition at line 628 of file tex_mgmt.cpp.

bool hoa_video::GameVideo::LoadAnimatedImageFromNumberElements	(	AnimatedImage &	image,
		const std::string &	file_name,
		const uint32	rows,
		const uint32	cols
	)

Loads a MultiImage in an AnimatedImage as frames. This function loads an image and cut it in pieces, loading each of that on frames of an AnimatedImage.

Parameters:

	image	AnimatedImage where the cut images will be loaded.
	file_name	Name of the file.
	rows	Number of rows of sub-images in the MultiImage.
	cols	Number of columns of sub-images in the MultiImage.

Returns:: success/failure

Definition at line 597 of file tex_mgmt.cpp.

References LoadMultiImageFromNumberElements(), and hoa_video::VIDEO_DEBUG.

Referenced by hoa_global::GlobalCharacter::GlobalCharacter().

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bool hoa_video::GameVideo::LoadFont	(	const std::string &	TTF_filename,
		const std::string &	name,
		uint32	size
	)

Loads a font from a .ttf file with a specific size.

Parameters:

	TTF_filename	The filename of the .ttf file to load.
	name	The name which to refer to the font (e.g. "courier24", "default", etc.)
	size	The point size of the font

Returns:: success/failure

Referenced by InitializeEngine(), and SingletonInitialize().

bool hoa_video::GameVideo::LoadImage ( ImageDescriptor & id )

Parameters:

image descriptor to load- either a StillImage or AnimatedImage.

Returns:: success/failure

Definition at line 208 of file tex_mgmt.cpp.

References _LoadImage().

Referenced by hoa_video::OptionBox::_ConstructOption(), hoa_video::MenuWindow::_RecreateImage(), hoa_battle::BattleMode::_TEMP_LoadTestData(), hoa_menu::private_menu::EquipWindow::_UpdateEquipList(), hoa_battle::private_battle::ActionWindow::ActionWindow(), hoa_battle::private_battle::BattleActor::BattleActor(), hoa_battle::private_battle::BattleCharacterActor::BattleCharacterActor(), hoa_battle::private_battle::BattleEnemyActor::BattleEnemyActor(), hoa_battle::BattleMode::BattleMode(), hoa_boot::BootMode::BootMode(), hoa_video::private_video::ParticleSystem::Create(), Display(), DrawFullscreenOverlay(), hoa_menu::private_menu::EquipWindow::EquipWindow(), hoa_video::ImageDescriptor::Load(), hoa_menu::private_menu::CharacterWindow::SetCharacter(), SetDefaultCursor(), hoa_map::private_map::VirtualSprite::SetFacePortrait(), hoa_global::GameGlobal::SetLocation(), and hoa_menu::private_menu::StatusWindow::StatusWindow().

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bool hoa_video::GameVideo::LoadImageGrayScale ( ImageDescriptor & id )

Parameters:

image descriptor to load- either a StillImage or AnimatedImage.

Returns:: success/failure

bool hoa_video::GameVideo::LoadMenuSkin	(	std::string	skin_name,
		std::string	border_image,
		std::string	background_image,
		Color	top_left,
		Color	top_right,
		Color	bottom_left,
		Color	bottom_right,
		bool	make_default = `false`
	)

A background image with multiple background colors.

Definition at line 1015 of file video.cpp.

References hoa_video::private_video::GUIManager, and hoa_video::private_video::GUISupervisor::LoadMenuSkin().

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bool hoa_video::GameVideo::LoadMenuSkin	(	std::string	skin_name,
		std::string	border_image,
		std::string	background_image,
		Color	background_color,
		bool	make_default = `false`
	)

A background image with a single background color.

Definition at line 1006 of file video.cpp.

References hoa_video::private_video::GUIManager, and hoa_video::private_video::GUISupervisor::LoadMenuSkin().

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bool hoa_video::GameVideo::LoadMenuSkin	(	std::string	skin_name,
		std::string	border_image,
		Color	top_left,
		Color	top_right,
		Color	bottom_left,
		Color	bottom_right,
		bool	make_default = `false`
	)

No background image with multiple background colors.

Definition at line 997 of file video.cpp.

References hoa_video::private_video::GUIManager, and hoa_video::private_video::GUISupervisor::LoadMenuSkin().

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bool hoa_video::GameVideo::LoadMenuSkin	(	std::string	skin_name,
		std::string	border_image,
		Color	background_color,
		bool	make_default = `false`
	)

No background image with a single background color.

Definition at line 989 of file video.cpp.

References hoa_video::private_video::GUIManager, and hoa_video::private_video::GUISupervisor::LoadMenuSkin().

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bool hoa_video::GameVideo::LoadMenuSkin	(	std::string	skin_name,
		std::string	border_image,
		std::string	background_image,
		bool	make_default = `false`
	)

A background image with no background colors.

Definition at line 981 of file video.cpp.

References hoa_video::Color::clear, hoa_video::private_video::GUIManager, and hoa_video::private_video::GUISupervisor::LoadMenuSkin().

Referenced by InitializeEngine().

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bool hoa_video::GameVideo::LoadMultiImageFromElementsSize	(	std::vector< StillImage > &	images,
		const std::string &	filename,
		const uint32	width,
		const uint32	height
	)

Parameters:

	images	Vector of StillImages where the cut images will be loaded.
	filename	Name of the file.
	width	Width of a stored element.
	height	Height of a stored element.

Returns:: success/failure

Definition at line 392 of file tex_mgmt.cpp.

References _LoadMultiImage(), GetImageInfo(), and hoa_video::VIDEO_DEBUG.

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bool hoa_video::GameVideo::LoadMultiImageFromNumberElements	(	std::vector< StillImage > &	images,
		const std::string &	filename,
		const uint32	rows,
		const uint32	cols
	)

Parameters:

	images	Vector of StillImages where the cut images will be loaded.
	filename	Name of the file.
	rows	Number of rows of sub-images in the MultiImage.
	cols	Number of columns of sub-images in the MultiImage.

Returns:: success/failure

Definition at line 352 of file tex_mgmt.cpp.

References _LoadMultiImage(), GetImageInfo(), and hoa_video::VIDEO_DEBUG.

Referenced by hoa_map::MapMode::_LoadTiles(), hoa_global::GlobalCharacter::GlobalCharacter(), hoa_global::GlobalEnemy::GlobalEnemy(), LoadAnimatedImageFromNumberElements(), hoa_map::private_map::MapSprite::LoadStandardAnimations(), and hoa_editor::Tileset::Tileset().

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bool hoa_video::GameVideo::MakeLightning ( const std::string & lit_file )

call to create lightning effect

Parameters:

lit_file

a .lit file which contains lightning intensities stored as bytes (0-255).

Returns:: success/failure

Definition at line 1682 of file video.cpp.

References _lightning_active, _lightning_current_time, _lightning_data, and _lightning_end_time.

bool hoa_video::GameVideo::MakeScreenshot ( )

makes a screenshot, saves it as screenshot.jpg in the directory of the game

Returns:: success/failure

Definition at line 361 of file video.cpp.

References _SaveJpeg(), hoa_video::private_video::ImageLoadInfo::height, hoa_video::private_video::ImageLoadInfo::pixels, hoa_video::VIDEO_DEBUG, and hoa_video::private_video::ImageLoadInfo::width.

Referenced by hoa_input::GameInput::_KeyEventHandler().

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void hoa_video::GameVideo::Move	(	float	x,
		float	y
	)

sets draw position to (x,y)

Parameters:

	x	x coordinate to move to
	y	y coordinate to move to

Definition at line 886 of file video.cpp.

References _x, and _y.

void hoa_video::GameVideo::MoveRelative	(	float	dx,
		float	dy
	)

moves draw position (dx, dy) units

Parameters:

	dx	how many units to move in x direction
	dy	how many units to move in y direction

Definition at line 902 of file video.cpp.

References _x, and _y.

Referenced by _DEBUG_ShowTexSheet(), hoa_battle::private_battle::ActionWindow::_DrawActionInformation(), hoa_battle::private_battle::ActionWindow::_DrawActionSelection(), hoa_menu::MenuMode::_DrawBottomMenu(), hoa_battle::BattleMode::_DrawBottomMenu(), _DrawStillImage(), hoa_video::TextBox::_DrawTextLines(), hoa_menu::private_menu::InventoryWindow::_InitInventoryItems(), Draw(), hoa_shop::private_shop::ObjectInfoWindow::Draw(), hoa_video::OptionBox::Draw(), hoa_menu::private_menu::EquipWindow::Draw(), hoa_menu::private_menu::SkillsWindow::Draw(), hoa_menu::private_menu::StatusWindow::Draw(), hoa_menu::private_menu::InventoryWindow::Draw(), hoa_menu::private_menu::CharacterWindow::Draw(), hoa_map::private_map::VirtualSprite::Draw(), hoa_map::private_map::DialogueManager::Draw(), hoa_map::MapMode::Draw(), hoa_boot::BootMode::Draw(), hoa_battle::private_battle::BattleEnemyActor::DrawStatus(), hoa_battle::private_battle::BattleCharacterActor::DrawStatus(), DrawText(), and hoa_editor::Grid::paintGL().

void hoa_video::GameVideo::PopMatrix ( )

pops the modelview transformation from the stack.

Definition at line 1558 of file video.cpp.

Referenced by hoa_video::ParticleEffect::_Draw(), and DrawHalo().

void hoa_video::GameVideo::PopState ( )

pops the most recently pushed video engine state from the stack and restores all of the old settings.

Definition at line 971 of file video.cpp.

References _PopContext().

Referenced by hoa_video::TextBox::_DrawTextLines(), hoa_video::private_video::GUIControl::CalculateAlignedRect(), hoa_map::private_map::DialogueManager::DialogueManager(), Display(), hoa_shop::private_shop::ConfirmWindow::Draw(), hoa_video::private_video::ParticleManager::Draw(), hoa_map::private_map::DialogueManager::Draw(), hoa_map::MapMode::Draw(), DrawFullscreenOverlay(), DrawGrid(), and hoa_video::MenuWindow::Update().

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void hoa_video::GameVideo::PushMatrix ( )

saves current modelview transformation on to the stack. In English, that means the combined result of calls to Move/MoveRelative/Scale/Rotate

Definition at line 1549 of file video.cpp.

Referenced by hoa_video::ParticleEffect::_Draw(), and DrawHalo().

void hoa_video::GameVideo::PushState ( )

Definition at line 961 of file video.cpp.

References _PushContext().

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bool hoa_video::GameVideo::ReloadTextures ( )

reloads textures that have been unloaded after a video settings change

Returns:: success/failure

Definition at line 2706 of file tex_mgmt.cpp.

References _CreateBlankGLTexture(), _DeleteTempTextures(), _light_overlay, _tex_sheets, _uses_lights, hoa_video::private_video::TexSheet::Reload(), and hoa_video::VIDEO_DEBUG.

Referenced by ApplySettings().

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RenderedString * hoa_video::GameVideo::RenderText ( const hoa_utils::ustring & txt )

Renders the given string to a drawable object.

Parameters:

txt

The string to render

Definition at line 761 of file text.cpp.

References _CacheGlyphs(), _coord_sys, _current_font, _current_text_color, _font_map, _GenTexLine(), _text_shadow, hoa_video::RenderedString::Add(), hoa_utils::ustring::c_str(), hoa_utils::ustring::empty(), hoa_video::CoordSys::GetHorizontalDirection(), hoa_video::CoordSys::GetVerticalDirection(), hoa_video::FontProperties::line_skip, hoa_utils::MakeStandardString(), RenderedString, hoa_video::FontProperties::shadow_style, hoa_video::FontProperties::shadow_x, hoa_video::FontProperties::shadow_y, hoa_utils::ustring::size(), hoa_video::FontProperties::ttf_font, hoa_video::VIDEO_DEBUG, and hoa_video::VIDEO_TEXT_SHADOW_NONE.

Referenced by hoa_boot::WelcomeScreen::Show(), and hoa_boot::CreditsScreen::Show().

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void hoa_video::GameVideo::Rotate ( float angle )

rotates images counterclockwise by 'angle' radians

Parameters:

angle

how many radians to rotate by

Note:: This function should NOT be used unless you understand how transformation matrices work in OpenGL.

Definition at line 928 of file video.cpp.

Referenced by hoa_boot::BootMode::_AnimateLogo().

bool hoa_video::GameVideo::SaveImage	(	const std::string &	file_name,
		const AnimatedImage &	image
	)			const

Saves an AnimatedImage into a file.

Definition at line 1235 of file tex_mgmt.cpp.

References SaveImage().

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bool hoa_video::GameVideo::SaveImage	(	const std::string &	file_name,
		const StillImage &	image
	)			const

Saves a StillImage into a file.

Definition at line 1256 of file tex_mgmt.cpp.

References hoa_video::StillImage::_elements, _GetBufferFromImage(), _RGBAToRGB(), _SaveJpeg(), _SavePng(), and hoa_video::VIDEO_DEBUG.

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bool hoa_video::GameVideo::SaveImage	(	const std::string &	file_name,
		const std::vector< StillImage * > &	image,
		const uint32	rows,
		const uint32	columns
	)			const

Saves a vector of images in a single file.

Definition at line 1079 of file tex_mgmt.cpp.

References _BindTexture(), hoa_video::private_video::TexSheet::height, hoa_video::private_video::ImageLoadInfo::height, hoa_video::private_video::ImageLoadInfo::pixels, hoa_video::private_video::TexSheet::tex_ID, hoa_video::private_video::Image::texture_sheet, hoa_video::VIDEO_DEBUG, hoa_video::VideoManager, hoa_video::private_video::TexSheet::width, hoa_video::private_video::ImageLoadInfo::width, hoa_video::private_video::Image::x, and hoa_video::private_video::Image::y.

Referenced by hoa_video::ImageDescriptor::Save(), and SaveImage().

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void hoa_video::GameVideo::Scale	(	float	x,
		float	y
	)

after you call this, subsequent calls to DrawImage() result in a scaled image

Parameters:

	x	pass 1.0 for normal horizontal scaling, 2.0 for double scaling, etc.
	y	same, except vertical scaling

Note:: This function should NOT be used unless you understand how transformation matrices work in OpenGL.

Definition at line 943 of file video.cpp.

void hoa_video::GameVideo::SetCoordSys ( const CoordSys & coordinate_system )

sets the coordinate system. Default is (0,1024,0,768)

Parameters:

coordinate_system

the coordinate system you want to set to

Definition at line 478 of file video.cpp.

References _coord_sys, hoa_video::CoordSys::GetBottom(), hoa_video::CoordSys::GetLeft(), hoa_video::CoordSys::GetRight(), and hoa_video::CoordSys::GetTop().

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void hoa_video::GameVideo::SetCoordSys	(	float	left,
		float	right,
		float	bottom,
		float	top
	)

sets the coordinate system. Default is (0,1024,0,768)

Parameters:

	left	left border of screen
	right	right border of screen
	top	top border of screen
	bottom	bottom border of screen

Definition at line 497 of file video.cpp.

Referenced by _DEBUG_ShowTexSheet(), _PopContext(), ApplyLightingOverlay(), hoa_boot::BootMode::BootMode(), hoa_map::private_map::DialogueManager::DialogueManager(), Display(), hoa_shop::ShopMode::Draw(), hoa_quit::QuitMode::Draw(), hoa_pause::PauseMode::Draw(), hoa_video::private_video::ParticleManager::Draw(), hoa_menu::MenuMode::Draw(), hoa_map::private_map::DialogueManager::Draw(), hoa_map::MapMode::Draw(), DrawFullscreenOverlay(), hoa_editor::Grid::paintGL(), hoa_shop::ShopMode::Reset(), hoa_quit::QuitMode::Reset(), hoa_pause::PauseMode::Reset(), hoa_menu::MenuMode::Reset(), hoa_map::MapMode::Reset(), hoa_boot::BootMode::Reset(), and hoa_battle::BattleMode::Reset().

bool hoa_video::GameVideo::SetDefaultCursor ( const std::string & cursor_image_filename )

sets the default cursor to the image in the given filename

Parameters:

cursor_image_filename

file containing the cursor image

Definition at line 1526 of file video.cpp.

References _default_menu_cursor, LoadImage(), and hoa_video::StillImage::SetFilename().

Referenced by SingletonInitialize().

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void hoa_video::GameVideo::SetDefaultMenuSkin ( std::string & skin_name ) [inline]

Sets the default menu skin to use.

Parameters:

skin_name

The name of the already loaded menu skin that should be made the default skin

If the skin_name does not refer to a valid skin, a warning message will be printed and no change will occur.

Note:: This method will not change the skins of any existing menu windows.

Definition at line 850 of file video.h.

References hoa_video::private_video::GUIManager.

void hoa_video::GameVideo::SetDrawFlags	(	int32	first_flag,
			...
	)

sets draw flags (flip, align, blending, etc). Simply pass in as many parameters as you want, as long as the last parameter is a zero. e.g. SetDrawFlags(VIDEO_X_LEFT, VIDEO_Y_CENTER, 0);

Parameters:

	first_flag	the first of many draw flags
	..	specify as many draw flags as you want. Terminate with a 0.

Definition at line 512 of file video.cpp.

References _blend, _x_align, _x_flip, _y_align, _y_flip, hoa_video::VIDEO_BLEND, hoa_video::VIDEO_BLEND_ADD, hoa_video::VIDEO_DEBUG, hoa_video::VIDEO_NO_BLEND, hoa_video::VIDEO_X_CENTER, hoa_video::VIDEO_X_FLIP, hoa_video::VIDEO_X_LEFT, hoa_video::VIDEO_X_NOFLIP,