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path: root/src/mesa/drivers/dri/intel/intel_pixel.c
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Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_pixel.c')
-rw-r--r--src/mesa/drivers/dri/intel/intel_pixel.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_pixel.c b/src/mesa/drivers/dri/intel/intel_pixel.c
index fc0ac0b79c..36a684b3b8 100644
--- a/src/mesa/drivers/dri/intel/intel_pixel.c
+++ b/src/mesa/drivers/dri/intel/intel_pixel.c
@@ -27,9 +27,12 @@
#include "main/enums.h"
#include "main/state.h"
+#include "main/bufferobj.h"
#include "main/context.h"
#include "main/enable.h"
#include "main/matrix.h"
+#include "main/texstate.h"
+#include "main/varray.h"
#include "main/viewport.h"
#include "swrast/swrast.h"
#include "shader/arbprogram.h"
@@ -334,6 +337,85 @@ intel_meta_restore_fragment_program(struct intel_context *intel)
_mesa_Disable(GL_FRAGMENT_PROGRAM_ARB);
}
+static const float default_texcoords[4][2] = { { 0.0, 0.0 },
+ { 1.0, 0.0 },
+ { 1.0, 1.0 },
+ { 0.0, 1.0 } };
+
+void
+intel_meta_set_default_texrect(struct intel_context *intel)
+{
+ GLcontext *ctx = &intel->ctx;
+ struct gl_client_array *old_texcoord_array;
+
+ intel->meta.saved_active_texture = ctx->Texture.CurrentUnit;
+ if (intel->meta.saved_array_vbo == NULL) {
+ _mesa_reference_buffer_object(ctx, &intel->meta.saved_array_vbo,
+ ctx->Array.ArrayBufferObj);
+ }
+
+ old_texcoord_array = &ctx->Array.ArrayObj->TexCoord[0];
+ intel->meta.saved_texcoord_type = old_texcoord_array->Type;
+ intel->meta.saved_texcoord_size = old_texcoord_array->Size;
+ intel->meta.saved_texcoord_stride = old_texcoord_array->Stride;
+ intel->meta.saved_texcoord_enable = old_texcoord_array->Enabled;
+ intel->meta.saved_texcoord_ptr = old_texcoord_array->Ptr;
+ _mesa_reference_buffer_object(ctx, &intel->meta.saved_texcoord_vbo,
+ old_texcoord_array->BufferObj);
+
+ _mesa_ClientActiveTextureARB(GL_TEXTURE0);
+
+ if (intel->meta.texcoord_vbo == NULL) {
+ GLuint vbo_name;
+
+ _mesa_GenBuffersARB(1, &vbo_name);
+ _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, vbo_name);
+ _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(default_texcoords),
+ default_texcoords, GL_STATIC_DRAW_ARB);
+ _mesa_reference_buffer_object(ctx, &intel->meta.texcoord_vbo,
+ ctx->Array.ArrayBufferObj);
+ } else {
+ _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB,
+ intel->meta.texcoord_vbo->Name);
+ }
+ _mesa_TexCoordPointer(2, GL_FLOAT, 2 * sizeof(GLfloat), NULL);
+
+ _mesa_Enable(GL_TEXTURE_COORD_ARRAY);
+}
+
+void
+intel_meta_restore_texcoords(struct intel_context *intel)
+{
+ GLcontext *ctx = &intel->ctx;
+
+ /* Restore the old TexCoordPointer */
+ if (intel->meta.saved_texcoord_vbo) {
+ _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB,
+ intel->meta.saved_texcoord_vbo->Name);
+ _mesa_reference_buffer_object(ctx, &intel->meta.saved_texcoord_vbo, NULL);
+ } else {
+ _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
+ }
+
+ _mesa_TexCoordPointer(intel->meta.saved_texcoord_size,
+ intel->meta.saved_texcoord_type,
+ intel->meta.saved_texcoord_stride,
+ intel->meta.saved_texcoord_ptr);
+ if (!intel->meta.saved_texcoord_enable)
+ _mesa_Disable(GL_TEXTURE_COORD_ARRAY);
+
+ _mesa_ClientActiveTextureARB(GL_TEXTURE0 +
+ intel->meta.saved_active_texture);
+
+ if (intel->meta.saved_array_vbo) {
+ _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB,
+ intel->meta.saved_array_vbo->Name);
+ _mesa_reference_buffer_object(ctx, &intel->meta.saved_array_vbo, NULL);
+ } else {
+ _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
+ }
+}
+
void
intelInitPixelFuncs(struct dd_function_table *functions)
{
@@ -355,5 +437,7 @@ intel_free_pixel_state(struct intel_context *intel)
_mesa_reference_vertprog(ctx, &intel->meta.passthrough_vp, NULL);
_mesa_reference_fragprog(ctx, &intel->meta.bitmap_fp, NULL);
+ _mesa_reference_fragprog(ctx, &intel->meta.tex2d_fp, NULL);
+ _mesa_reference_buffer_object(ctx, &intel->meta.texcoord_vbo, NULL);
}