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authorAndrei Karas <akaras@inbox.ru>2013-03-24 00:21:41 +0300
committerAndrei Karas <akaras@inbox.ru>2013-03-24 00:21:41 +0300
commit1e37ebb4eb808f56bbbd522dbab524c24439d92b (patch)
tree4a588f611f2417afd35c55c00f510333669ab9b0
parent2aa5e6701cc6bcc18b1f797dba25e4023f604845 (diff)
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improve safeopenglgraphics class.
-rw-r--r--src/safeopenglgraphics.cpp69
-rw-r--r--src/safeopenglgraphics.h4
2 files changed, 34 insertions, 39 deletions
diff --git a/src/safeopenglgraphics.cpp b/src/safeopenglgraphics.cpp
index 5802691ec..0cd00d60d 100644
--- a/src/safeopenglgraphics.cpp
+++ b/src/safeopenglgraphics.cpp
@@ -64,20 +64,21 @@ bool SafeOpenGLGraphics::setVideoMode(const int w, const int h, const int bpp,
}
static inline void drawQuad(const Image *image,
- int srcX, int srcY, int dstX, int dstY,
- int width, int height)
+ const int srcX, const int srcY,
+ const int dstX, const int dstY,
+ const int width, const int height)
{
if (OpenGLImageHelper::mTextureType == GL_TEXTURE_2D)
{
// Find OpenGL normalized texture coordinates.
- float texX1 = static_cast<float>(srcX)
+ const float texX1 = static_cast<float>(srcX)
/ static_cast<float>(image->mTexWidth);
- float texY1 = static_cast<float>(srcY)
+ const float texY1 = static_cast<float>(srcY)
+ / static_cast<float>(image->mTexHeight);
+ const float texX2 = static_cast<float>(srcX + width)
+ / static_cast<float>(image->mTexWidth);
+ const float texY2 = static_cast<float>(srcY + height)
/ static_cast<float>(image->mTexHeight);
- float texX2 = static_cast<float>(srcX + width) / static_cast<float>(
- image->mTexWidth);
- float texY2 = static_cast<float>(srcY + height) / static_cast<float>(
- image->mTexHeight);
glTexCoord2f(texX1, texY1);
glVertex2i(dstX, dstY);
@@ -102,21 +103,22 @@ static inline void drawQuad(const Image *image,
}
static inline void drawRescaledQuad(const Image *const image,
- int srcX, int srcY,
- int dstX, int dstY, int width, int height,
- int desiredWidth, int desiredHeight)
+ const int srcX, const int srcY,
+ const int dstX, const int dstY,
+ const int width, const int height,
+ const int desiredWidth, const int desiredHeight)
{
if (OpenGLImageHelper::mTextureType == GL_TEXTURE_2D)
{
// Find OpenGL normalized texture coordinates.
- float texX1 = static_cast<float>(srcX)
+ const float texX1 = static_cast<float>(srcX)
+ / static_cast<float>(image->mTexWidth);
+ const float texY1 = static_cast<float>(srcY)
+ / static_cast<float>(image->mTexHeight);
+ const float texX2 = static_cast<float>(srcX + width)
/ static_cast<float>(image->mTexWidth);
- float texY1 = static_cast<float>(srcY)
+ const float texY2 = static_cast<float>(srcY + height)
/ static_cast<float>(image->mTexHeight);
- float texX2 = static_cast<float>(srcX + width) / static_cast<float>(
- image->mTexWidth);
- float texY2 = static_cast<float>(srcY + height) / static_cast<float>(
- image->mTexHeight);
glTexCoord2f(texX1, texY1);
glVertex2i(dstX, dstY);
@@ -251,18 +253,16 @@ void SafeOpenGLGraphics::drawImagePattern(const Image *const image,
if (!image)
return;
- const int srcX = image->mBounds.x;
- const int srcY = image->mBounds.y;
-
const int iw = image->mBounds.w;
const int ih = image->mBounds.h;
if (iw == 0 || ih == 0)
return;
- setColorAlpha(image->mAlpha);
+ const int srcX = image->mBounds.x;
+ const int srcY = image->mBounds.y;
+ setColorAlpha(image->mAlpha);
bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);
-
setTexturingAndBlending(true);
// Draw a set of textured rectangles
@@ -276,7 +276,6 @@ void SafeOpenGLGraphics::drawImagePattern(const Image *const image,
{
int width = (px + iw >= w) ? w - px : iw;
int dstX = x + px;
-
drawQuad(image, srcX, srcY, dstX, dstY, width, height);
}
}
@@ -293,18 +292,16 @@ void SafeOpenGLGraphics::drawRescaledImagePattern(const Image *const image,
if (!image)
return;
- const int srcX = image->mBounds.x;
- const int srcY = image->mBounds.y;
-
const int iw = scaledWidth;
const int ih = scaledHeight;
if (iw == 0 || ih == 0)
return;
- setColorAlpha(image->mAlpha);
+ const int srcX = image->mBounds.x;
+ const int srcY = image->mBounds.y;
+ setColorAlpha(image->mAlpha);
bindTexture(OpenGLImageHelper::mTextureType, image->mGLImage);
-
setTexturingAndBlending(true);
// Draw a set of textured rectangles
@@ -406,10 +403,8 @@ SDL_Surface* SafeOpenGLGraphics::getScreenshot()
const int w = mTarget->w - (mTarget->w % 4);
GLint pack = 1;
- SDL_Surface *screenshot = SDL_CreateRGBSurface(
- SDL_SWSURFACE,
- w, h, 24,
- 0xff0000, 0x00ff00, 0x0000ff, 0x000000);
+ SDL_Surface *const screenshot = SDL_CreateRGBSurface(
+ SDL_SWSURFACE, w, h, 24, 0xff0000, 0x00ff00, 0x0000ff, 0x000000);
if (!screenshot)
return nullptr;
@@ -428,9 +423,9 @@ SDL_Surface* SafeOpenGLGraphics::getScreenshot()
for (int i = 0; i < (h / 2); i++)
{
- GLubyte *top = static_cast<GLubyte*>(
+ GLubyte *const top = static_cast<GLubyte*>(
screenshot->pixels) + lineSize * i;
- GLubyte *bot = static_cast<GLubyte*>(
+ GLubyte *const bot = static_cast<GLubyte*>(
screenshot->pixels) + lineSize * (h - 1 - i);
memcpy(buf, top, lineSize);
@@ -463,7 +458,7 @@ bool SafeOpenGLGraphics::pushClipArea(gcn::Rectangle area)
transY = -clipArea.yOffset;
}
- bool result = gcn::Graphics::pushClipArea(area);
+ const bool result = gcn::Graphics::pushClipArea(area);
const gcn::ClipRectangle &clipArea = mClipStack.top();
transX += clipArea.xOffset;
@@ -531,7 +526,7 @@ void SafeOpenGLGraphics::setTargetPlane(int width A_UNUSED,
{
}
-void SafeOpenGLGraphics::setTexturingAndBlending(bool enable)
+void SafeOpenGLGraphics::setTexturingAndBlending(const bool enable)
{
if (enable)
{
@@ -591,7 +586,7 @@ void SafeOpenGLGraphics::drawRectangle(const gcn::Rectangle& rect,
BLOCK_END("Graphics::drawRectangle")
}
-void SafeOpenGLGraphics::bindTexture(GLenum target, GLuint texture)
+void SafeOpenGLGraphics::bindTexture(const GLenum target, const GLuint texture)
{
if (mLastImage != texture)
{
diff --git a/src/safeopenglgraphics.h b/src/safeopenglgraphics.h
index e9650c6b9..d9b7af5bd 100644
--- a/src/safeopenglgraphics.h
+++ b/src/safeopenglgraphics.h
@@ -127,7 +127,7 @@ class SafeOpenGLGraphics final : public Graphics
void prepareScreenshot() override;
- static void bindTexture(GLenum target, GLuint texture);
+ static void bindTexture(const GLenum target, const GLuint texture);
static GLuint mLastImage;
@@ -138,7 +138,7 @@ class SafeOpenGLGraphics final : public Graphics
const int width, const int height,
const bool useColor);
- void setTexturingAndBlending(bool enable);
+ void setTexturingAndBlending(const bool enable);
private:
void inline setColorAlpha(float alpha);