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Add config option working around buggy graphics drivers

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"subImageFix=true" should fix missing text on radeonsi fglrx
as well as most mobile drivers. Also fixes tileset atlas on
mobile.
This commit is contained in:
Jonas Kulla 2015-01-01 23:38:11 +01:00
parent 9122446b23
commit b42725ea20
5 changed files with 99 additions and 13 deletions

44
src/bitmap.cpp
View file

@ -374,14 +374,46 @@ void Bitmap::stretchBlt(const IntRect &destRect,
if (opacity == 0)
return;
if (source.megaSurface())
SDL_Surface *srcSurf = source.megaSurface();
if (srcSurf && shState->config().subImageFix)
{
/* Blit from software surface, for broken GL drivers */
Vec2i gpTexSize;
shState->ensureTexSize(sourceRect.w, sourceRect.h, gpTexSize);
shState->bindTex();
GLMeta::subRectImageUpload(srcSurf->w, sourceRect.x, sourceRect.y, 0, 0,
sourceRect.w, sourceRect.h, srcSurf, GL_RGBA);
GLMeta::subRectImageEnd();
SimpleShader &shader = shState->shaders().simple;
shader.bind();
shader.setTranslation(Vec2i());
shader.setTexSize(gpTexSize);
p->pushSetViewport(shader);
p->bindFBO();
Quad &quad = shState->gpQuad();
quad.setTexRect(FloatRect(0, 0, sourceRect.w, sourceRect.h));
quad.setPosRect(destRect);
p->blitQuad(quad);
p->popViewport();
p->addTaintedArea(destRect);
p->onModified();
return;
}
else if (srcSurf)
{
/* Blit from software surface */
/* Don't do transparent blits for now */
if (opacity < 255)
source.ensureNonMega();
SDL_Surface *srcSurf = source.megaSurface();
SDL_Rect srcRect = sourceRect;
SDL_Rect dstRect = destRect;
SDL_Rect btmRect = { 0, 0, width(), height() };
@ -405,18 +437,19 @@ void Bitmap::stretchBlt(const IntRect &destRect,
if (bltRect.w == dstRect.w && bltRect.h == dstRect.h)
{
/* Dest rectangle lies within bounding box */
TEX::uploadSubImage(destRect.x, destRect.y,
destRect.w, destRect.h,
blitTemp->pixels, GL_RGBA);
}
else
{
/* Clipped blit */
GLMeta::subRectImageUpload(blitTemp->w, bltRect.x - dstRect.x, bltRect.y - dstRect.y,
bltRect.x, bltRect.y, bltRect.w, bltRect.h, blitTemp, GL_RGBA);
GLMeta::subRectImageEnd();
}
SDL_FreeSurface(blitTemp);
p->onModified();
@ -468,7 +501,6 @@ void Bitmap::stretchBlt(const IntRect &destRect,
}
p->addTaintedArea(destRect);
p->onModified();
}
@ -1023,7 +1055,7 @@ void Bitmap::drawText(const IntRect &rect, const char *str, int align)
if (fastBlit)
{
if (squeeze == 1.0)
if (squeeze == 1.0 && !shState->config().subImageFix)
{
/* Even faster: upload directly to bitmap texture.
* We have to make sure the posRect lies within the texture