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IPHONE: Precalculate vertex/tex coordinates for game screen/overlay.

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This commit is contained in:
Johannes Schickel 2012-02-20 19:40:54 +01:00
parent 56e517fdad
commit cf44d49d19
2 changed files with 50 additions and 38 deletions
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6
backends/platform/iphone/iphone_video.h
View File

@ -53,6 +53,12 @@
GLuint _mouseCursorTexture; GLuint _mouseCursorTexture;
UIDeviceOrientation _orientation; UIDeviceOrientation _orientation;
GLfloat _gameScreenVertCoords[4 * 2];
GLfloat _gameScreenTexCoords[4 * 2];
GLfloat _overlayVertCoords[4 * 2];
GLfloat _overlayTexCoords[4 * 2];
} }
- (id)initWithFrame:(struct CGRect)frame; - (id)initWithFrame:(struct CGRect)frame;

82
backends/platform/iphone/iphone_video.m
View File

@ -288,6 +288,26 @@ static void setFilterModeForTexture(GLuint tex, GraphicsModes mode) {
_overlayTexture = 0; _overlayTexture = 0;
_mouseCursorTexture = 0; _mouseCursorTexture = 0;
_gameScreenVertCoords[0] = _gameScreenVertCoords[1] =
_gameScreenVertCoords[2] = _gameScreenVertCoords[3] =
_gameScreenVertCoords[4] = _gameScreenVertCoords[5] =
_gameScreenVertCoords[6] = _gameScreenVertCoords[7] = 0;
_gameScreenTexCoords[0] = _gameScreenTexCoords[1] =
_gameScreenTexCoords[2] = _gameScreenTexCoords[3] =
_gameScreenTexCoords[4] = _gameScreenTexCoords[5] =
_gameScreenTexCoords[6] = _gameScreenTexCoords[7] = 0;
_overlayVertCoords[0] = _overlayVertCoords[1] =
_overlayVertCoords[2] = _overlayVertCoords[3] =
_overlayVertCoords[4] = _overlayVertCoords[5] =
_overlayVertCoords[6] = _overlayVertCoords[7] = 0;
_overlayTexCoords[0] = _overlayTexCoords[1] =
_overlayTexCoords[2] = _overlayTexCoords[3] =
_overlayTexCoords[4] = _overlayTexCoords[5] =
_overlayTexCoords[6] = _overlayTexCoords[7] = 0;
return self; return self;
} }
@ -362,25 +382,8 @@ static void setFilterModeForTexture(GLuint tex, GraphicsModes mode) {
} }
- (void)updateMainSurface { - (void)updateMainSurface {
GLfloat vertices[] = { glVertexPointer(2, GL_FLOAT, 0, _gameScreenVertCoords); printOpenGLError();
0.0f + _heightOffset, 0.0f + _widthOffset, glTexCoordPointer(2, GL_FLOAT, 0, _gameScreenTexCoords); printOpenGLError();
_visibleWidth - _heightOffset, 0.0f + _widthOffset,
0.0f + _heightOffset, _visibleHeight - _widthOffset,
_visibleWidth - _heightOffset, _visibleHeight - _widthOffset
};
float texWidth = _width / (float)_gameScreenTextureWidth;
float texHeight = _height / (float)_gameScreenTextureHeight;
const GLfloat texCoords[] = {
texWidth, 0.0f,
0.0f, 0.0f,
texWidth, texHeight,
0.0f, texHeight
};
glVertexPointer(2, GL_FLOAT, 0, vertices); printOpenGLError();
glTexCoordPointer(2, GL_FLOAT, 0, texCoords); printOpenGLError();
glBindTexture(GL_TEXTURE_2D, _screenTexture); printOpenGLError(); glBindTexture(GL_TEXTURE_2D, _screenTexture); printOpenGLError();
@ -392,25 +395,8 @@ static void setFilterModeForTexture(GLuint tex, GraphicsModes mode) {
} }
- (void)updateOverlaySurface { - (void)updateOverlaySurface {
GLfloat vertices[] = { glVertexPointer(2, GL_FLOAT, 0, _overlayVertCoords); printOpenGLError();
0.0f, 0.0f, glTexCoordPointer(2, GL_FLOAT, 0, _overlayTexCoords); printOpenGLError();
_overlayHeight, 0.0f,
0.0f, _overlayWidth * _overlayPortraitRatio,
_overlayHeight, _overlayWidth * _overlayPortraitRatio
};
float texWidth = _overlayWidth / (float)_overlayTexWidth;
float texHeight = _overlayHeight / (float)_overlayTexHeight;
const GLfloat texCoords[] = {
texWidth, 0.0f,
0.0f, 0.0f,
texWidth, texHeight,
0.0f, texHeight
};
glVertexPointer(2, GL_FLOAT, 0, vertices); printOpenGLError();
glTexCoordPointer(2, GL_FLOAT, 0, texCoords); printOpenGLError();
glBindTexture(GL_TEXTURE_2D, _overlayTexture); printOpenGLError(); glBindTexture(GL_TEXTURE_2D, _overlayTexture); printOpenGLError();
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, _overlayTexWidth, _overlayTexHeight, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, _overlayTexBuffer); printOpenGLError(); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, _overlayTexWidth, _overlayTexHeight, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, _overlayTexBuffer); printOpenGLError();
@ -479,6 +465,9 @@ static void setFilterModeForTexture(GLuint tex, GraphicsModes mode) {
_gameScreenTextureWidth = getSizeNextPOT(_width); _gameScreenTextureWidth = getSizeNextPOT(_width);
_gameScreenTextureHeight = getSizeNextPOT(_height); _gameScreenTextureHeight = getSizeNextPOT(_height);
_gameScreenTexCoords[0] = _gameScreenTexCoords[4] = _width / (GLfloat)_gameScreenTextureWidth;
_gameScreenTexCoords[5] = _gameScreenTexCoords[7] = _height / (GLfloat)_gameScreenTextureHeight;
_orientation = [[UIDevice currentDevice] orientation]; _orientation = [[UIDevice currentDevice] orientation];
switch (_orientation) { switch (_orientation) {
@ -523,6 +512,9 @@ static void setFilterModeForTexture(GLuint tex, GraphicsModes mode) {
_overlayTexWidth = getSizeNextPOT(_overlayHeight); _overlayTexWidth = getSizeNextPOT(_overlayHeight);
_overlayTexHeight = getSizeNextPOT(_overlayWidth); _overlayTexHeight = getSizeNextPOT(_overlayWidth);
_overlayTexCoords[0] = _overlayTexCoords[4] = _overlayWidth / (GLfloat)_overlayTexWidth;
_overlayTexCoords[5] = _overlayTexCoords[7] = _overlayHeight / (GLfloat)_overlayTexHeight;
int textureSize = _overlayTexWidth * _overlayTexHeight * 2; int textureSize = _overlayTexWidth * _overlayTexHeight * 2;
_overlayTexBuffer = (char *)malloc(textureSize); _overlayTexBuffer = (char *)malloc(textureSize);
memset(_overlayTexBuffer, 0, textureSize); memset(_overlayTexBuffer, 0, textureSize);
@ -623,6 +615,20 @@ static void setFilterModeForTexture(GLuint tex, GraphicsModes mode) {
[[_keyboardView inputView] becomeFirstResponder]; [[_keyboardView inputView] becomeFirstResponder];
_overlayPortraitRatio = (_overlayHeight * ratio) / _overlayWidth; _overlayPortraitRatio = (_overlayHeight * ratio) / _overlayWidth;
} }
_gameScreenVertCoords[0] = _heightOffset;
_gameScreenVertCoords[1] = _widthOffset;
_gameScreenVertCoords[2] = _visibleWidth - _heightOffset;
_gameScreenVertCoords[3] = _widthOffset;
_gameScreenVertCoords[4] = _heightOffset;
_gameScreenVertCoords[5] = _visibleHeight - _widthOffset;
_gameScreenVertCoords[6] = _visibleWidth - _heightOffset;
_gameScreenVertCoords[7] = _visibleHeight - _widthOffset;
_overlayVertCoords[2] = _overlayHeight;
_overlayVertCoords[5] = _overlayWidth * _overlayPortraitRatio;
_overlayVertCoords[6] = _overlayHeight;
_overlayVertCoords[7] = _overlayWidth * _overlayPortraitRatio;
} }
- (void)clearColorBuffer { - (void)clearColorBuffer {