thirdparty/scummvm
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BACKENDS: Drop glBegin/glEnd

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This commit is contained in:
Paweł Kołodziejski 2022-01-10 02:13:40 +01:00
parent d1d77f887e
commit f24bffc8cf
1 changed files with 40 additions and 14 deletions
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54
backends/graphics3d/opengl/surfacerenderer.cpp
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@ -48,6 +48,13 @@ SurfaceRenderer *createBestSurfaceRenderer() {
#endif
}
struct SurfaceVertex {
float x;
float y;
float u;
float v;
};
SurfaceRenderer::SurfaceRenderer() :
_flipY(false),
_alphaBlending(false) {
@ -111,19 +118,38 @@ void FixedSurfaceRenderer::render(const TextureGL *tex, const Math::Rect2d &dest
float sizeX = fabsf(dest.getWidth());
float sizeY = fabsf(dest.getHeight());
SurfaceVertex vertices[4];
vertices[0].x = offsetX;
vertices[0].y = offsetY;
vertices[0].u = 0.0f;
vertices[0].v = texTop;
vertices[1].x = offsetX + sizeX;
vertices[1].y = offsetY;
vertices[1].u = texcropX;
vertices[1].v = texTop;
vertices[2].x = offsetX + sizeX;
vertices[2].y = offsetY + sizeY;
vertices[2].u = texcropX;
vertices[2].v = texBottom;
vertices[3].x = offsetX;
vertices[3].y = offsetY + sizeY;
vertices[3].u = 0.0f;
vertices[3].v = texBottom;
glColor4f(1.0, 1.0, 1.0, 1.0);
glBindTexture(GL_TEXTURE_2D, tex->getTextureName());
glBegin(GL_QUADS);
glTexCoord2f(0, texTop);
glVertex2f(offsetX, offsetY);
glTexCoord2f(texcropX, texTop);
glVertex2f(offsetX + sizeX, offsetY);
glTexCoord2f(texcropX, texBottom);
glVertex2f(offsetX + sizeX, offsetY + sizeY);
glTexCoord2f(0.0, texBottom);
glVertex2f(offsetX, offsetY + sizeY);
glEnd();
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glVertexPointer(2, GL_FLOAT, sizeof(SurfaceVertex), &vertices[0].x);
glTexCoordPointer(2, GL_FLOAT, sizeof(SurfaceVertex), &vertices[0].u);
glDrawArrays(GL_QUADS, 0, 4);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
void FixedSurfaceRenderer::restorePreviousState() {
@ -148,10 +174,10 @@ void FixedSurfaceRenderer::restorePreviousState() {
ShaderSurfaceRenderer::ShaderSurfaceRenderer() {
const GLfloat vertices[] = {
0.0, 0.0,
1.0, 0.0,
0.0, 1.0,
1.0, 1.0,
0.0, 0.0,
1.0, 0.0,
0.0, 1.0,
1.0, 1.0,
};
// Setup the box shader used to render the overlay