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wined3d: Fix glReadPixels call from read_from_framebuffer.

This commit is contained in:
Nick Burns 2008-12-22 06:08:10 -08:00 committed by Alexandre Julliard
parent 72423f5f6d
commit 9dea6f7de5
1 changed files with 33 additions and 2 deletions
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35
dlls/wined3d/surface.c
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@ -691,6 +691,9 @@ static void read_from_framebuffer(IWineD3DSurfaceImpl *This, CONST RECT *rect, v
BOOL bpp;
RECT local_rect;
BOOL srcIsUpsideDown;
GLint rowLen = 0;
GLint skipPix = 0;
GLint skipRow = 0;
if(wined3d_settings.rendertargetlock_mode == RTL_DISABLE) {
static BOOL warned = FALSE;
@ -786,14 +789,42 @@ static void read_from_framebuffer(IWineD3DSurfaceImpl *This, CONST RECT *rect, v
if(This->Flags & SFLAG_PBO) {
GL_EXTCALL(glBindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, This->pbo));
checkGLcall("glBindBufferARB");
if(mem != NULL) {
ERR("mem not null for pbo -- unexpected\n");
mem = NULL;
}
}
glReadPixels(local_rect.left, local_rect.top,
/* Save old pixel store pack state */
glGetIntegerv(GL_PACK_ROW_LENGTH, &rowLen);
checkGLcall("glIntegerv");
glGetIntegerv(GL_PACK_SKIP_PIXELS, &skipPix);
checkGLcall("glIntegerv");
glGetIntegerv(GL_PACK_SKIP_ROWS, &skipRow);
checkGLcall("glIntegerv");
/* Setup pixel store pack state -- to glReadPixels into the correct place */
glPixelStorei(GL_PACK_ROW_LENGTH, This->currentDesc.Width);
checkGLcall("glPixelStorei");
glPixelStorei(GL_PACK_SKIP_PIXELS, local_rect.left);
checkGLcall("glPixelStorei");
glPixelStorei(GL_PACK_SKIP_ROWS, local_rect.top);
checkGLcall("glPixelStorei");
glReadPixels(local_rect.left, (!srcIsUpsideDown) ? (This->currentDesc.Height - local_rect.bottom) : local_rect.top ,
local_rect.right - local_rect.left,
local_rect.bottom - local_rect.top,
fmt, type, mem);
checkGLcall("glReadPixels");
/* Reset previous pixel store pack state */
glPixelStorei(GL_PACK_ROW_LENGTH, rowLen);
checkGLcall("glPixelStorei");
glPixelStorei(GL_PACK_SKIP_PIXELS, skipPix);
checkGLcall("glPixelStorei");
glPixelStorei(GL_PACK_SKIP_ROWS, skipRow);
checkGLcall("glPixelStorei");
if(This->Flags & SFLAG_PBO) {
GL_EXTCALL(glBindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, 0));
checkGLcall("glBindBufferARB");
@ -828,7 +859,7 @@ static void read_from_framebuffer(IWineD3DSurfaceImpl *This, CONST RECT *rect, v
}
top = mem + pitch * local_rect.top;
bottom = mem + pitch * ( local_rect.bottom - local_rect.top - 1);
bottom = mem + pitch * (local_rect.bottom - 1);
for(i = 0; i < (local_rect.bottom - local_rect.top) / 2; i++) {
memcpy(row, top + off, len);
memcpy(top + off, bottom + off, len);