[g3dvl] move z-coord generation for multiple render targets into vertex shader

[mesa.git] / src / mesa / drivers / dri / intel / intel_tex_copy.c

diff --git a/src/mesa/drivers/dri/intel/intel_tex_copy.c b/src/mesa/drivers/dri/intel/intel_tex_copy.c
index 62e1e78f59be035ca2e3d9649a7e17f2aa4de8bc..87b31bf078ce62c66c9d04869317d22633f0035d 100644 (file)
--- a/src/mesa/drivers/dri/intel/intel_tex_copy.c
+++ b/src/mesa/drivers/dri/intel/intel_tex_copy.c
@@ -30,7 +30,6 @@
 #include "main/image.h"
 #include "main/teximage.h"
 #include "main/texstate.h"
-#include "main/mipmap.h"
 
 #include "drivers/common/meta.h"
 
@@ -72,8 +71,18 @@ get_teximage_source(struct intel_context *intel, GLenum internalFormat)
       if (irb && irb->region && irb->region->cpp == 4)
          return irb->region;
       return NULL;
+   case 4:
    case GL_RGBA:
    case GL_RGBA8:
+      irb = intel_renderbuffer(intel->ctx.ReadBuffer->_ColorReadBuffer);
+      /* We're required to set alpha to 1.0 in this case, but we can't
+       * do that with the blitter, so fall back.  We could use the 3D
+       * engine or do two passes with the blitter, but it doesn't seem
+       * worth it for this case. */
+      if (irb->Base._BaseFormat == GL_RGB)
+        return NULL;
+      return irb->region;
+   case 3:
    case GL_RGB:
    case GL_RGB8:
       return intel_readbuf_region(intel);
@@ -91,24 +100,23 @@ do_copy_texsubimage(struct intel_context *intel,
                     GLint dstx, GLint dsty,
                     GLint x, GLint y, GLsizei width, GLsizei height)
 {
-   GLcontext *ctx = &intel->ctx;
+   struct gl_context *ctx = &intel->ctx;
    const struct intel_region *src = get_teximage_source(intel, internalFormat);
 
-   if (!intelImage->mt || !src) {
-      if (INTEL_DEBUG & DEBUG_FALLBACKS)
+   if (!intelImage->mt || !src || !src->buffer) {
+      if (unlikely(INTEL_DEBUG & DEBUG_FALLBACKS))
         fprintf(stderr, "%s fail %p %p (0x%08x)\n",
                 __FUNCTION__, intelImage->mt, src, internalFormat);
       return GL_FALSE;
    }
 
    if (intelImage->mt->cpp != src->cpp) {
-      if (INTEL_DEBUG & DEBUG_FALLBACKS)
-        fprintf(stderr, "%s fail %d vs %d cpp\n",
-                __FUNCTION__, intelImage->mt->cpp, src->cpp);
+      fallback_debug("%s fail %d vs %d cpp\n",
+                    __FUNCTION__, intelImage->mt->cpp, src->cpp);
       return GL_FALSE;
    }
 
-   /* intelFlush(ctx); */
+   /* intel_flush(ctx); */
    intel_prepare_render(intel);
    {
       drm_intel_bo *dst_bo = intel_region_buffer(intel,
@@ -124,7 +132,7 @@ do_copy_texsubimage(struct intel_context *intel,
                                     0,
                                     &image_x, &image_y);
 
-      /* Can't blit to tiled buffers with non-tile-aligned offset. */
+      /* The blitter can't handle Y-tiled buffers. */
       if (intelImage->mt->region->tiling == I915_TILING_Y) {
         return GL_FALSE;
       }
@@ -162,7 +170,7 @@ do_copy_texsubimage(struct intel_context *intel,
 
 
 static void
-intelCopyTexImage1D(GLcontext * ctx, GLenum target, GLint level,
+intelCopyTexImage1D(struct gl_context * ctx, GLenum target, GLint level,
                     GLenum internalFormat,
                     GLint x, GLint y, GLsizei width, GLint border)
 {
@@ -202,15 +210,14 @@ intelCopyTexImage1D(GLcontext * ctx, GLenum target, GLint level,
    return;
 
  fail:
-   if (INTEL_DEBUG & DEBUG_FALLBACKS)
-      fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
+   fallback_debug("%s - fallback to swrast\n", __FUNCTION__);
    _mesa_meta_CopyTexImage1D(ctx, target, level, internalFormat, x, y,
                              width, border);
 }
 
 
 static void
-intelCopyTexImage2D(GLcontext * ctx, GLenum target, GLint level,
+intelCopyTexImage2D(struct gl_context * ctx, GLenum target, GLint level,
                     GLenum internalFormat,
                     GLint x, GLint y, GLsizei width, GLsizei height,
                     GLint border)
@@ -251,15 +258,14 @@ intelCopyTexImage2D(GLcontext * ctx, GLenum target, GLint level,
    return;
 
  fail:
-   if (INTEL_DEBUG & DEBUG_FALLBACKS)
-      fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
+   fallback_debug("%s - fallback to swrast\n", __FUNCTION__);
    _mesa_meta_CopyTexImage2D(ctx, target, level, internalFormat, x, y,
                              width, height, border);
 }
 
 
 static void
-intelCopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
+intelCopyTexSubImage1D(struct gl_context * ctx, GLenum target, GLint level,
                        GLint xoffset, GLint x, GLint y, GLsizei width)
 {
    struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
@@ -277,15 +283,14 @@ intelCopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
    if (!do_copy_texsubimage(intel_context(ctx), target,
                             intel_texture_image(texImage),
                             internalFormat, xoffset, 0, x, y, width, 1)) {
-      if (INTEL_DEBUG & DEBUG_FALLBACKS)
-         fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
+      fallback_debug("%s - fallback to swrast\n", __FUNCTION__);
       _mesa_meta_CopyTexSubImage1D(ctx, target, level, xoffset, x, y, width);
    }
 }
 
 
 static void
-intelCopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
+intelCopyTexSubImage2D(struct gl_context * ctx, GLenum target, GLint level,
                        GLint xoffset, GLint yoffset,
                        GLint x, GLint y, GLsizei width, GLsizei height)
 {
@@ -304,8 +309,7 @@ intelCopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
                             internalFormat,
                             xoffset, yoffset, x, y, width, height)) {
 
-      if (INTEL_DEBUG & DEBUG_FALLBACKS)
-         fprintf(stderr, "%s - fallback to swrast\n", __FUNCTION__);
+      fallback_debug("%s - fallback to swrast\n", __FUNCTION__);
       _mesa_meta_CopyTexSubImage2D(ctx, target, level,
                                    xoffset, yoffset, x, y, width, height);
    }