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TINYGL: Added tglBlitZBuffer as a way to render to the Z buffer.

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Stefano Musumeci 2014-07-25 15:45:12 +02:00
parent 00ae985fb0
commit b5720b425f
3 changed files with 40 additions and 1 deletions
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30
graphics/tinygl/zblit.cpp
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@ -3,6 +3,7 @@
#include "graphics/pixelbuffer.h"
#include "common/array.h"
#include "graphics/tinygl/zrect.h"
#include "graphics/tinygl/gl.h"
#include <math.h>
namespace Graphics {
@ -131,6 +132,25 @@ public:
return true;
}
void tglBlitZBuffer(int dstX, int dstY) {
TinyGL::GLContext *c = TinyGL::gl_get_context();
int clampWidth, clampHeight;
int width = _surface.w, height = _surface.h;
int srcWidth = 0, srcHeight = 0;
if (clipBlitImage(c, srcWidth, srcHeight, width, height, dstX, dstY, clampWidth, clampHeight) == false)
return;
Graphics::PixelBuffer srcBuf(_surface.format, (byte *)const_cast<void *>(_surface.getPixels()));
Graphics::PixelBuffer dstBuf(_surface.format, (byte *)c->fb->getZBuffer());
for (int l = 0; l < clampHeight; l++) {
dstBuf.copyBuffer(0, clampWidth, srcBuf);
dstBuf.shiftBy(c->fb->xsize);
srcBuf.shiftBy(srcWidth);
}
}
template <bool disableColoring, bool disableBlending, bool enableAlphaBlending>
FORCEINLINE void tglBlitRLE(int dstX, int dstY, int srcX, int srcY, int srcWidth, int srcHeight, float aTint, float rTint, float gTint, float bTint);
@ -489,6 +509,12 @@ void tglBlitFast(BlitImage *blitImage, int x, int y) {
TinyGL::glIssueDrawCall(new BlittingDrawCall(blitImage, transform, BlittingDrawCall::BlitMode_Fast));
}
void tglBlitZBuffer(BlitImage *blitImage, int x, int y) {
BlitTransform transform(x, y);
TinyGL::glIssueDrawCall(new BlittingDrawCall(blitImage, transform, BlittingDrawCall::BlitMode_ZBuffer));
}
namespace Internal {
void tglBlit(BlitImage *blitImage, const BlitTransform &transform) {
@ -579,6 +605,10 @@ void tglBlitFast(BlitImage *blitImage, int x, int y) {
blitImage->tglBlitGeneric<true, true, true, false, false, false>(transform);
}
void tglBlitZBuffer(BlitImage *blitImage, int x, int y) {
blitImage->tglBlitZBuffer(x, y);
}
void tglCleanupImages() {
TinyGL::GLContext *c = TinyGL::gl_get_context();
for (int32 i = 0; i < c->blitImages.size(); i++) {