svn merge ^/branches/released . --username marha

1 files changed, 298 insertions, 0 deletions

diff --git a/mesalib/src/mesa/drivers/dri/common/dri_metaops.c b/mesalib/src/mesa/drivers/dri/common/dri_metaops.c
new file mode 100644
index 000000000..c7bea07dc
--- /dev/null
+++ b/mesalib/src/mesa/drivers/dri/common/dri_metaops.c
@@ -0,0 +1,298 @@
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2009 Intel Corporation.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "main/arrayobj.h"
+#include "main/attrib.h"
+#include "main/blend.h"
+#include "main/bufferobj.h"
+#include "main/buffers.h"
+#include "main/depth.h"
+#include "main/enable.h"
+#include "main/matrix.h"
+#include "main/macros.h"
+#include "main/polygon.h"
+#include "main/shaders.h"
+#include "main/stencil.h"
+#include "main/texstate.h"
+#include "main/varray.h"
+#include "main/viewport.h"
+#include "shader/arbprogram.h"
+#include "shader/program.h"
+#include "dri_metaops.h"
+
+void
+meta_set_passthrough_transform(struct dri_metaops *meta)
+{
+   GLcontext *ctx = meta->ctx;
+
+   meta->saved_vp_x = ctx->Viewport.X;
+   meta->saved_vp_y = ctx->Viewport.Y;
+   meta->saved_vp_width = ctx->Viewport.Width;
+   meta->saved_vp_height = ctx->Viewport.Height;
+   meta->saved_matrix_mode = ctx->Transform.MatrixMode;
+
+   meta->internal_viewport_call = GL_TRUE;
+   _mesa_Viewport(0, 0, ctx->DrawBuffer->Width, ctx->DrawBuffer->Height);
+   meta->internal_viewport_call = GL_FALSE;
+
+   _mesa_MatrixMode(GL_PROJECTION);
+   _mesa_PushMatrix();
+   _mesa_LoadIdentity();
+   _mesa_Ortho(0, ctx->DrawBuffer->Width, 0, ctx->DrawBuffer->Height, 1, -1);
+
+   _mesa_MatrixMode(GL_MODELVIEW);
+   _mesa_PushMatrix();
+   _mesa_LoadIdentity();
+}
+
+void
+meta_restore_transform(struct dri_metaops *meta)
+{
+   _mesa_MatrixMode(GL_PROJECTION);
+   _mesa_PopMatrix();
+   _mesa_MatrixMode(GL_MODELVIEW);
+   _mesa_PopMatrix();
+
+   _mesa_MatrixMode(meta->saved_matrix_mode);
+
+   meta->internal_viewport_call = GL_TRUE;
+   _mesa_Viewport(meta->saved_vp_x, meta->saved_vp_y,
+		  meta->saved_vp_width, meta->saved_vp_height);
+   meta->internal_viewport_call = GL_FALSE;
+}
+
+
+/**
+ * Set up a vertex program to pass through the position and first texcoord
+ * for pixel path.
+ */
+void
+meta_set_passthrough_vertex_program(struct dri_metaops *meta)
+{
+   GLcontext *ctx = meta->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(meta->saved_vp == NULL);
+
+   _mesa_reference_vertprog(ctx, &meta->saved_vp,
+			    ctx->VertexProgram.Current);
+   if (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, &meta->passthrough_vp,
+			       ctx->VertexProgram.Current);
+      _mesa_DeletePrograms(1, &prog_name);
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+   _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current,
+			    meta->passthrough_vp);
+   ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,
+			   &meta->passthrough_vp->Base);
+
+   meta->saved_vp_enable = ctx->VertexProgram.Enabled;
+   _mesa_Enable(GL_VERTEX_PROGRAM_ARB);
+}
+
+/**
+ * Restores the previous vertex program after
+ * meta_set_passthrough_vertex_program()
+ */
+void
+meta_restore_vertex_program(struct dri_metaops *meta)
+{
+   GLcontext *ctx = meta->ctx;
+
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+   _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current,
+			    meta->saved_vp);
+   _mesa_reference_vertprog(ctx, &meta->saved_vp, NULL);
+   ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,
+			   &ctx->VertexProgram.Current->Base);
+
+   if (!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
+meta_set_fragment_program(struct dri_metaops *meta,
+			  struct gl_fragment_program **prog,
+			  const char *prog_string)
+{
+   GLcontext *ctx = meta->ctx;
+   assert(meta->saved_fp == NULL);
+
+   _mesa_reference_fragprog(ctx, &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));
+
+   meta->saved_fp_enable = ctx->FragmentProgram.Enabled;
+   _mesa_Enable(GL_FRAGMENT_PROGRAM_ARB);
+}
+
+/**
+ * Restores the previous fragment program after
+ * meta_set_fragment_program()
+ */
+void
+meta_restore_fragment_program(struct dri_metaops *meta)
+{
+   GLcontext *ctx = meta->ctx;
+
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+   _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current,
+			    meta->saved_fp);
+   _mesa_reference_fragprog(ctx, &meta->saved_fp, NULL);
+   ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
+			   &ctx->FragmentProgram.Current->Base);
+
+   if (!meta->saved_fp_enable)
+      _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
+meta_set_default_texrect(struct dri_metaops *meta)
+{
+   GLcontext *ctx = meta->ctx;
+   struct gl_client_array *old_texcoord_array;
+
+   meta->saved_active_texture = ctx->Texture.CurrentUnit;
+   if (meta->saved_array_vbo == NULL) {
+      _mesa_reference_buffer_object(ctx, &meta->saved_array_vbo,
+				    ctx->Array.ArrayBufferObj);
+   }
+
+   old_texcoord_array = &ctx->Array.ArrayObj->TexCoord[0];
+   meta->saved_texcoord_type = old_texcoord_array->Type;
+   meta->saved_texcoord_size = old_texcoord_array->Size;
+   meta->saved_texcoord_stride = old_texcoord_array->Stride;
+   meta->saved_texcoord_enable = old_texcoord_array->Enabled;
+   meta->saved_texcoord_ptr = old_texcoord_array->Ptr;
+   _mesa_reference_buffer_object(ctx, &meta->saved_texcoord_vbo,
+				 old_texcoord_array->BufferObj);
+
+   _mesa_ClientActiveTextureARB(GL_TEXTURE0);
+
+   if (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, &meta->texcoord_vbo,
+				    ctx->Array.ArrayBufferObj);
+   } else {
+      _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB,
+			  meta->texcoord_vbo->Name);
+   }
+   _mesa_TexCoordPointer(2, GL_FLOAT, 2 * sizeof(GLfloat), NULL);
+
+   _mesa_Enable(GL_TEXTURE_COORD_ARRAY);
+}
+
+void
+meta_restore_texcoords(struct dri_metaops *meta)
+{
+   GLcontext *ctx = meta->ctx;
+
+   /* Restore the old TexCoordPointer */
+   if (meta->saved_texcoord_vbo) {
+      _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB,
+			  meta->saved_texcoord_vbo->Name);
+      _mesa_reference_buffer_object(ctx, &meta->saved_texcoord_vbo, NULL);
+   } else {
+      _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
+   }
+
+   _mesa_TexCoordPointer(meta->saved_texcoord_size,
+			 meta->saved_texcoord_type,
+			 meta->saved_texcoord_stride,
+			 meta->saved_texcoord_ptr);
+   if (!meta->saved_texcoord_enable)
+      _mesa_Disable(GL_TEXTURE_COORD_ARRAY);
+
+   _mesa_ClientActiveTextureARB(GL_TEXTURE0 +
+				meta->saved_active_texture);
+
+   if (meta->saved_array_vbo) {
+      _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB,
+			  meta->saved_array_vbo->Name);
+      _mesa_reference_buffer_object(ctx, &meta->saved_array_vbo, NULL);
+   } else {
+      _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
+   }
+}
+
+
+void meta_init_metaops(GLcontext *ctx, struct dri_metaops *meta)
+{
+   meta->ctx = ctx;
+}
+
+void meta_destroy_metaops(struct dri_metaops *meta)
+{
+
+}