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gallium: Various coordinate fixups for texture transfers.

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Fixes glReadPixels, gl(Copy)TexSubImage, glCopyPixels.
This commit is contained in:
Michel Dänzer
2009-02-13 17:34:29 +01:00
parent 5af34758e3
commit 7c8836e9ef
3 changed files with 9 additions and 9 deletions
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8
src/mesa/state_tracker/st_cb_readpixels.c
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@@ -213,7 +213,7 @@ st_fast_readpixels(GLcontext *ctx, struct st_renderbuffer *strb,
GLint row, col, dy, dstStride;
if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
y = strb->texture->height[0] - y - 1;
y = strb->texture->height[0] - y - height;
}
trans = screen->get_tex_transfer(screen, strb->texture, 0, 0, 0,
@@ -229,7 +229,7 @@ st_fast_readpixels(GLcontext *ctx, struct st_renderbuffer *strb,
}
if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
y = height - y - 1;
y = height - 1;
dy = -1;
}
else {
@@ -365,7 +365,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
}
if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
y = strb->Base.Height - 1 - y;
y = strb->Base.Height - y - height;
}
/* Create a read transfer from the renderbuffer's texture */
@@ -374,7 +374,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
/* determine bottom-to-top vs. top-to-bottom order */
if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
y = trans->height - 1 - y;
y = height - 1;
yStep = -1;
}
else {