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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.c133
1 files changed, 133 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_pixel.c b/src/mesa/drivers/dri/intel/intel_pixel.c
index 5702ad9bb5..91027d37e7 100644
--- a/src/mesa/drivers/dri/intel/intel_pixel.c
+++ b/src/mesa/drivers/dri/intel/intel_pixel.c
@@ -27,7 +27,11 @@
#include "main/enums.h"
#include "main/state.h"
+#include "main/context.h"
+#include "main/enable.h"
#include "swrast/swrast.h"
+#include "shader/arbprogram.h"
+#include "shader/program.h"
#include "intel_context.h"
#include "intel_pixel.h"
@@ -167,6 +171,125 @@ intel_check_blit_format(struct intel_region * region,
return GL_FALSE;
}
+/**
+ * Set up a vertex program to pass through the position and first texcoord
+ * for pixel path.
+ */
+void
+intel_meta_set_passthrough_vertex_program(struct intel_context *intel)
+{
+ GLcontext *ctx = &intel->ctx;
+ static const char *vp =
+ "!!ARBvp1.0\n"
+ "TEMP vertexClip;\n"
+ "DP4 vertexClip.x, state.matrix.mvp.row[0], vertex.position;\n"
+ "DP4 vertexClip.y, state.matrix.mvp.row[1], vertex.position;\n"
+ "DP4 vertexClip.z, state.matrix.mvp.row[2], vertex.position;\n"
+ "DP4 vertexClip.w, state.matrix.mvp.row[3], vertex.position;\n"
+ "MOV result.position, vertexClip;\n"
+ "MOV result.texcoord[0], vertex.texcoord[0];\n"
+ "MOV result.color, vertex.color;\n"
+ "END\n";
+
+ assert(intel->meta.saved_vp == NULL);
+
+ _mesa_reference_vertprog(ctx, &intel->meta.saved_vp,
+ ctx->VertexProgram.Current);
+ if (intel->meta.passthrough_vp == NULL) {
+ GLuint prog_name;
+ _mesa_GenPrograms(1, &prog_name);
+ _mesa_BindProgram(GL_VERTEX_PROGRAM_ARB, prog_name);
+ _mesa_ProgramStringARB(GL_VERTEX_PROGRAM_ARB,
+ GL_PROGRAM_FORMAT_ASCII_ARB,
+ strlen(vp), (const GLubyte *)vp);
+ _mesa_reference_vertprog(ctx, &intel->meta.passthrough_vp,
+ ctx->VertexProgram.Current);
+ _mesa_DeletePrograms(1, &prog_name);
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current,
+ intel->meta.passthrough_vp);
+ ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,
+ &intel->meta.passthrough_vp->Base);
+
+ intel->meta.saved_vp_enable = ctx->VertexProgram.Enabled;
+ _mesa_Enable(GL_VERTEX_PROGRAM_ARB);
+}
+
+/**
+ * Restores the previous vertex program after
+ * intel_meta_set_passthrough_vertex_program()
+ */
+void
+intel_meta_restore_vertex_program(struct intel_context *intel)
+{
+ GLcontext *ctx = &intel->ctx;
+
+ FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current,
+ intel->meta.saved_vp);
+ _mesa_reference_vertprog(ctx, &intel->meta.saved_vp, NULL);
+ ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,
+ &ctx->VertexProgram.Current->Base);
+
+ if (!intel->meta.saved_vp_enable)
+ _mesa_Disable(GL_VERTEX_PROGRAM_ARB);
+}
+
+/**
+ * Binds the given program string to GL_FRAGMENT_PROGRAM_ARB, caching the
+ * program object.
+ */
+void
+intel_meta_set_fragment_program(struct intel_context *intel,
+ struct gl_fragment_program **prog,
+ const char *prog_string)
+{
+ GLcontext *ctx = &intel->ctx;
+ assert(intel->meta.saved_fp == NULL);
+
+ _mesa_reference_fragprog(ctx, &intel->meta.saved_fp,
+ ctx->FragmentProgram.Current);
+ if (*prog == NULL) {
+ GLuint prog_name;
+ _mesa_GenPrograms(1, &prog_name);
+ _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, prog_name);
+ _mesa_ProgramStringARB(GL_FRAGMENT_PROGRAM_ARB,
+ GL_PROGRAM_FORMAT_ASCII_ARB,
+ strlen(prog_string), (const GLubyte *)prog_string);
+ _mesa_reference_fragprog(ctx, prog, ctx->FragmentProgram.Current);
+ /* Note that DeletePrograms unbinds the program on us */
+ _mesa_DeletePrograms(1, &prog_name);
+ }
+
+ FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, *prog);
+ ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, &((*prog)->Base));
+
+ intel->meta.saved_fp_enable = ctx->FragmentProgram.Enabled;
+ _mesa_Enable(GL_FRAGMENT_PROGRAM_ARB);
+}
+
+/**
+ * Restores the previous fragment program after
+ * intel_meta_set_fragment_program()
+ */
+void
+intel_meta_restore_fragment_program(struct intel_context *intel)
+{
+ GLcontext *ctx = &intel->ctx;
+
+ FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current,
+ intel->meta.saved_fp);
+ _mesa_reference_fragprog(ctx, &intel->meta.saved_fp, NULL);
+ ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
+ &ctx->FragmentProgram.Current->Base);
+
+ if (!intel->meta.saved_fp_enable)
+ _mesa_Disable(GL_FRAGMENT_PROGRAM_ARB);
+}
void
intelInitPixelFuncs(struct dd_function_table *functions)
@@ -181,3 +304,13 @@ intelInitPixelFuncs(struct dd_function_table *functions)
#endif
}
}
+
+void
+intel_free_pixel_state(struct intel_context *intel)
+{
+ GLcontext *ctx = &intel->ctx;
+
+ _mesa_reference_vertprog(ctx, &intel->meta.passthrough_vp, NULL);
+ _mesa_reference_fragprog(ctx, &intel->meta.bitmap_fp, NULL);
+}
+