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i915: Only invert wpos when rendering to the system framebuffer.

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This commit is contained in:
Henri Verbeet 2011-03-07 21:15:03 +01:00
parent a99b23752b
commit a8bde5c47e
1 changed files with 15 additions and 7 deletions
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22
src/mesa/drivers/dri/i915/intel_tris.c
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@ -490,6 +490,7 @@ static void
intel_wpos_triangle(struct intel_context *intel,
intelVertexPtr v0, intelVertexPtr v1, intelVertexPtr v2)
{
const struct gl_framebuffer *fb = intel->ctx.DrawBuffer;
GLuint offset = intel->wpos_offset;
GLuint size = intel->wpos_size;
GLfloat *v0_wpos = (GLfloat *)((char *)v0 + offset);
@ -500,10 +501,11 @@ intel_wpos_triangle(struct intel_context *intel,
__memcpy(v1_wpos, v1, size);
__memcpy(v2_wpos, v2, size);
v0_wpos[1] = -v0_wpos[1] + intel->ctx.DrawBuffer->Height;
v1_wpos[1] = -v1_wpos[1] + intel->ctx.DrawBuffer->Height;
v2_wpos[1] = -v2_wpos[1] + intel->ctx.DrawBuffer->Height;
if (!fb->Name) {
v0_wpos[1] = -v0_wpos[1] + fb->Height;
v1_wpos[1] = -v1_wpos[1] + fb->Height;
v2_wpos[1] = -v2_wpos[1] + fb->Height;
}
intel_draw_triangle(intel, v0, v1, v2);
}
@ -513,6 +515,7 @@ static void
intel_wpos_line(struct intel_context *intel,
intelVertexPtr v0, intelVertexPtr v1)
{
const struct gl_framebuffer *fb = intel->ctx.DrawBuffer;
GLuint offset = intel->wpos_offset;
GLuint size = intel->wpos_size;
GLfloat *v0_wpos = (GLfloat *)((char *)v0 + offset);
@ -521,8 +524,10 @@ intel_wpos_line(struct intel_context *intel,
__memcpy(v0_wpos, v0, size);
__memcpy(v1_wpos, v1, size);
v0_wpos[1] = -v0_wpos[1] + intel->ctx.DrawBuffer->Height;
v1_wpos[1] = -v1_wpos[1] + intel->ctx.DrawBuffer->Height;
if (!fb->Name) {
v0_wpos[1] = -v0_wpos[1] + fb->Height;
v1_wpos[1] = -v1_wpos[1] + fb->Height;
}
intel_draw_line(intel, v0, v1);
}
@ -531,12 +536,15 @@ intel_wpos_line(struct intel_context *intel,
static void
intel_wpos_point(struct intel_context *intel, intelVertexPtr v0)
{
const struct gl_framebuffer *fb = intel->ctx.DrawBuffer;
GLuint offset = intel->wpos_offset;
GLuint size = intel->wpos_size;
GLfloat *v0_wpos = (GLfloat *)((char *)v0 + offset);
__memcpy(v0_wpos, v0, size);
v0_wpos[1] = -v0_wpos[1] + intel->ctx.DrawBuffer->Height;
if (!fb->Name)
v0_wpos[1] = -v0_wpos[1] + fb->Height;
intel_draw_point(intel, v0);
}