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When s/w rendering to texture memory, don't invert Y as for regular rendering.

Browse source 
Perhaps put yScale, yBias factors into intel_renderbuffer since they're
the same as those in intelCalcViewport().
This commit is contained in:
Brian Paul 2006-03-21 21:39:21 +00:00
parent dafdf6512e
commit 31a82a663c
1 changed files with 5 additions and 3 deletions
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8
src/mesa/drivers/dri/i915/intel_span.c
View file

@ -49,7 +49,8 @@
#define LOCAL_VARS \
struct intel_context *intel = intel_context(ctx); \
struct intel_renderbuffer *irb = intel_renderbuffer(rb); \
const GLuint bottom = irb->Base.Height - 1; \
const GLint yScale = irb->RenderToTexture ? 1 : -1; \
const GLint yBias = irb->RenderToTexture ? 0 : irb->Base.Height - 1; \
GLubyte *buf = (GLubyte *) irb->pfMap \
+ (intel->drawY * irb->pfPitch + intel->drawX) * irb->region->cpp;\
GLuint p; \
@ -72,7 +73,7 @@
#define Y_FLIP(_y) (bottom - _y)
#define Y_FLIP(_y) ((_y) * yScale + yBias)
#define HW_LOCK()
@ -103,7 +104,8 @@
struct intel_context *intel = intel_context(ctx); \
struct intel_renderbuffer *irb = intel_renderbuffer(rb); \
const GLuint pitch = irb->pfPitch/***XXX region->pitch*/; /* in pixels */ \
const GLuint bottom = rb->Height - 1; \
const GLint yScale = irb->RenderToTexture ? 1 : -1; \
const GLint yBias = irb->RenderToTexture ? 0 : irb->Base.Height - 1; \
char *buf = (char *) irb->pfMap/*XXX use region->map*/ + \
(intel->drawY * pitch + intel->drawX) * irb->region->cpp;