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[i915] fix fragment.position

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This commit is contained in:
Zou Nan hai
2008-03-19 16:29:47 +08:00
parent b790b24ff9
commit c62f504eb6
1 changed files with 21 additions and 6 deletions
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src/mesa/drivers/dri/i915/intel_tris.c
+21 -6
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@@ -311,10 +311,18 @@ intel_wpos_triangle(struct intel_context *intel,
{
GLuint offset = intel->wpos_offset;
GLuint size = intel->wpos_size;
GLfloat *v0_wpos = (GLfloat *)((char *)v0 + offset);
GLfloat *v1_wpos = (GLfloat *)((char *)v1 + offset);
GLfloat *v2_wpos = (GLfloat *)((char *)v2 + offset);
__memcpy(v0_wpos, v0, size);
__memcpy(v1_wpos, v1, size);
__memcpy(v2_wpos, v2, size);
v0_wpos[1] = -v0_wpos[1] + intel->driDrawable->h;
v1_wpos[1] = -v1_wpos[1] + intel->driDrawable->h;
v2_wpos[1] = -v2_wpos[1] + intel->driDrawable->h;
__memcpy(((char *) v0) + offset, v0, size);
__memcpy(((char *) v1) + offset, v1, size);
__memcpy(((char *) v2) + offset, v2, size);
intel_draw_triangle(intel, v0, v1, v2);
}
@@ -326,9 +334,14 @@ intel_wpos_line(struct intel_context *intel,
{
GLuint offset = intel->wpos_offset;
GLuint size = intel->wpos_size;
GLfloat *v0_wpos = (GLfloat *)((char *)v0 + offset);
GLfloat *v1_wpos = (GLfloat *)((char *)v1 + offset);
__memcpy(((char *) v0) + offset, v0, size);
__memcpy(((char *) v1) + offset, v1, size);
__memcpy(v0_wpos, v0, size);
__memcpy(v1_wpos, v1, size);
v0_wpos[1] = -v0_wpos[1] + intel->driDrawable->h;
v1_wpos[1] = -v1_wpos[1] + intel->driDrawable->h;
intel_draw_line(intel, v0, v1);
}
@@ -339,8 +352,10 @@ intel_wpos_point(struct intel_context *intel, intelVertexPtr v0)
{
GLuint offset = intel->wpos_offset;
GLuint size = intel->wpos_size;
GLfloat *v0_wpos = (GLfloat *)((char *)v0 + offset);
__memcpy(((char *) v0) + offset, v0, size);
__memcpy(v0_wpos, v0, size);
v0_wpos[1] = -v0_wpos[1] + intel->driDrawable->h;
intel_draw_point(intel, v0);
}