xserver and mesa git update 28-12-2010

1 files changed, 332 insertions, 330 deletions

diff --git a/mesalib/src/glsl/main.cpp b/mesalib/src/glsl/main.cpp
index 94c14a58a..e8167f0e9 100644
--- a/mesalib/src/glsl/main.cpp
+++ b/mesalib/src/glsl/main.cpp
@@ -1,330 +1,332 @@
-/*
- * Copyright © 2008, 2009 Intel Corporation
- *
- * 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, sublicense,
- * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS 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 <cstdlib>
-#include <cstdio>
-#include <getopt.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-#include "ast.h"
-#include "glsl_parser_extras.h"
-#include "glsl_parser.h"
-#include "ir_optimization.h"
-#include "ir_print_visitor.h"
-#include "program.h"
-#include "loop_analysis.h"
-
-extern "C" struct gl_shader *
-_mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type);
-
-/* Copied from shader_api.c for the stand-alone compiler.
- */
-struct gl_shader *
-_mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type)
-{
-   struct gl_shader *shader;
-
-   (void) ctx;
-
-   assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER);
-   shader = talloc_zero(NULL, struct gl_shader);
-   if (shader) {
-      shader->Type = type;
-      shader->Name = name;
-      shader->RefCount = 1;
-   }
-   return shader;
-}
-
-static void
-initialize_context(GLcontext *ctx, gl_api api)
-{
-   memset(ctx, 0, sizeof(*ctx));
-
-   ctx->API = api;
-
-   ctx->Extensions.ARB_draw_buffers = GL_TRUE;
-   ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
-   ctx->Extensions.EXT_texture_array = GL_TRUE;
-   ctx->Extensions.NV_texture_rectangle = GL_TRUE;
-
-   /* 1.10 minimums. */
-   ctx->Const.MaxLights = 8;
-   ctx->Const.MaxClipPlanes = 8;
-   ctx->Const.MaxTextureUnits = 2;
-
-   /* More than the 1.10 minimum to appease parser tests taken from
-    * apps that (hopefully) already checked the number of coords.
-    */
-   ctx->Const.MaxTextureCoordUnits = 4;
-
-   ctx->Const.VertexProgram.MaxAttribs = 16;
-   ctx->Const.VertexProgram.MaxUniformComponents = 512;
-   ctx->Const.MaxVarying = 8;
-   ctx->Const.MaxVertexTextureImageUnits = 0;
-   ctx->Const.MaxCombinedTextureImageUnits = 2;
-   ctx->Const.MaxTextureImageUnits = 2;
-   ctx->Const.FragmentProgram.MaxUniformComponents = 64;
-
-   ctx->Const.MaxDrawBuffers = 2;
-
-   ctx->Driver.NewShader = _mesa_new_shader;
-}
-
-/* Returned string will have 'ctx' as its talloc owner. */
-static char *
-load_text_file(void *ctx, const char *file_name)
-{
-	char *text = NULL;
-	struct stat st;
-	ssize_t total_read = 0;
-	int fd = open(file_name, O_RDONLY);
-
-	if (fd < 0) {
-		return NULL;
-	}
-
-	if (fstat(fd, & st) == 0) {
-	   text = (char *) talloc_size(ctx, st.st_size + 1);
-		if (text != NULL) {
-			do {
-				ssize_t bytes = read(fd, text + total_read,
-						     st.st_size - total_read);
-				if (bytes < 0) {
-					free(text);
-					text = NULL;
-					break;
-				}
-
-				if (bytes == 0) {
-					break;
-				}
-
-				total_read += bytes;
-			} while (total_read < st.st_size);
-
-			text[total_read] = '\0';
-		}
-	}
-
-	close(fd);
-
-	return text;
-}
-
-
-void
-usage_fail(const char *name)
-{
-      printf("%s <filename.frag|filename.vert>\n", name);
-      exit(EXIT_FAILURE);
-}
-
-
-int glsl_es = 0;
-int dump_ast = 0;
-int dump_hir = 0;
-int dump_lir = 0;
-int do_link = 0;
-
-const struct option compiler_opts[] = {
-   { "glsl-es",  0, &glsl_es,  1 },
-   { "dump-ast", 0, &dump_ast, 1 },
-   { "dump-hir", 0, &dump_hir, 1 },
-   { "dump-lir", 0, &dump_lir, 1 },
-   { "link",     0, &do_link,  1 },
-   { NULL, 0, NULL, 0 }
-};
-
-void
-compile_shader(GLcontext *ctx, struct gl_shader *shader)
-{
-   struct _mesa_glsl_parse_state *state =
-      new(shader) _mesa_glsl_parse_state(ctx, shader->Type, shader);
-
-   const char *source = shader->Source;
-   state->error = preprocess(state, &source, &state->info_log,
-			     state->extensions, ctx->API);
-
-   if (!state->error) {
-      _mesa_glsl_lexer_ctor(state, source);
-      _mesa_glsl_parse(state);
-      _mesa_glsl_lexer_dtor(state);
-   }
-
-   if (dump_ast) {
-      foreach_list_const(n, &state->translation_unit) {
-	 ast_node *ast = exec_node_data(ast_node, n, link);
-	 ast->print();
-      }
-      printf("\n\n");
-   }
-
-   shader->ir = new(shader) exec_list;
-   if (!state->error && !state->translation_unit.is_empty())
-      _mesa_ast_to_hir(shader->ir, state);
-
-   /* Print out the unoptimized IR. */
-   if (!state->error && dump_hir) {
-      validate_ir_tree(shader->ir);
-      _mesa_print_ir(shader->ir, state);
-   }
-
-   /* Optimization passes */
-   if (!state->error && !shader->ir->is_empty()) {
-      bool progress;
-      do {
-	 progress = false;
-
-	 progress = do_function_inlining(shader->ir) || progress;
-	 progress = do_if_simplification(shader->ir) || progress;
-	 progress = do_copy_propagation(shader->ir) || progress;
-	 progress = do_dead_code_local(shader->ir) || progress;
-	 progress = do_dead_code_unlinked(shader->ir) || progress;
-	 progress = do_tree_grafting(shader->ir) || progress;
-	 progress = do_constant_propagation(shader->ir) || progress;
-	 progress = do_constant_variable_unlinked(shader->ir) || progress;
-	 progress = do_constant_folding(shader->ir) || progress;
-	 progress = do_algebraic(shader->ir) || progress;
-	 progress = do_vec_index_to_swizzle(shader->ir) || progress;
-	 progress = do_vec_index_to_cond_assign(shader->ir) || progress;
-	 progress = do_swizzle_swizzle(shader->ir) || progress;
-
-	 loop_state *ls = analyze_loop_variables(shader->ir);
-	 progress = set_loop_controls(shader->ir, ls) || progress;
-	 progress = unroll_loops(shader->ir, ls, 32) || progress;
-	 delete ls;
-      } while (progress);
-
-      validate_ir_tree(shader->ir);
-   }
-
-
-   /* Print out the resulting IR */
-   if (!state->error && dump_lir) {
-      _mesa_print_ir(shader->ir, state);
-   }
-
-   shader->symbols = state->symbols;
-   shader->CompileStatus = !state->error;
-   shader->Version = state->language_version;
-   memcpy(shader->builtins_to_link, state->builtins_to_link,
-	  sizeof(shader->builtins_to_link[0]) * state->num_builtins_to_link);
-   shader->num_builtins_to_link = state->num_builtins_to_link;
-
-   if (shader->InfoLog)
-      talloc_free(shader->InfoLog);
-
-   shader->InfoLog = state->info_log;
-
-   /* Retain any live IR, but trash the rest. */
-   reparent_ir(shader->ir, shader);
-
-   talloc_free(state);
-
-   return;
-}
-
-int
-main(int argc, char **argv)
-{
-   int status = EXIT_SUCCESS;
-   GLcontext local_ctx;
-   GLcontext *ctx = &local_ctx;
-
-   int c;
-   int idx = 0;
-   while ((c = getopt_long(argc, argv, "", compiler_opts, &idx)) != -1)
-      /* empty */ ;
-
-
-   if (argc <= optind)
-      usage_fail(argv[0]);
-
-   initialize_context(ctx, (glsl_es) ? API_OPENGLES2 : API_OPENGL);
-
-   struct gl_shader_program *whole_program;
-
-   whole_program = talloc_zero (NULL, struct gl_shader_program);
-   assert(whole_program != NULL);
-
-   for (/* empty */; argc > optind; optind++) {
-      whole_program->Shaders = (struct gl_shader **)
-	 talloc_realloc(whole_program, whole_program->Shaders,
-			struct gl_shader *, whole_program->NumShaders + 1);
-      assert(whole_program->Shaders != NULL);
-
-      struct gl_shader *shader = talloc_zero(whole_program, gl_shader);
-
-      whole_program->Shaders[whole_program->NumShaders] = shader;
-      whole_program->NumShaders++;
-
-      const unsigned len = strlen(argv[optind]);
-      if (len < 6)
-	 usage_fail(argv[0]);
-
-      const char *const ext = & argv[optind][len - 5];
-      if (strncmp(".vert", ext, 5) == 0)
-	 shader->Type = GL_VERTEX_SHADER;
-      else if (strncmp(".geom", ext, 5) == 0)
-	 shader->Type = GL_GEOMETRY_SHADER;
-      else if (strncmp(".frag", ext, 5) == 0)
-	 shader->Type = GL_FRAGMENT_SHADER;
-      else
-	 usage_fail(argv[0]);
-
-      shader->Source = load_text_file(whole_program, argv[optind]);
-      if (shader->Source == NULL) {
-	 printf("File \"%s\" does not exist.\n", argv[optind]);
-	 exit(EXIT_FAILURE);
-      }
-
-      compile_shader(ctx, shader);
-
-      if (!shader->CompileStatus) {
-	 printf("Info log for %s:\n%s\n", argv[optind], shader->InfoLog);
-	 status = EXIT_FAILURE;
-	 break;
-      }
-   }
-
-   if ((status == EXIT_SUCCESS) && do_link)  {
-      link_shaders(ctx, whole_program);
-      status = (whole_program->LinkStatus) ? EXIT_SUCCESS : EXIT_FAILURE;
-
-      if (strlen(whole_program->InfoLog) > 0)
-	 printf("Info log for linking:\n%s\n", whole_program->InfoLog);
-   }
-
-   for (unsigned i = 0; i < whole_program->_NumLinkedShaders; i++)
-      talloc_free(whole_program->_LinkedShaders[i]);
-
-   talloc_free(whole_program);
-   _mesa_glsl_release_types();
-   _mesa_glsl_release_functions();
-
-   return status;
-}
+/*

+ * Copyright © 2008, 2009 Intel Corporation

+ *

+ * 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, sublicense,

+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL

+ * THE AUTHORS OR COPYRIGHT HOLDERS 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 <cstdlib>

+#include <cstdio>

+#include <getopt.h>

+

+#include <sys/types.h>

+#include <sys/stat.h>

+#include <fcntl.h>

+#include <unistd.h>

+

+#include "ast.h"

+#include "glsl_parser_extras.h"

+#include "glsl_parser.h"

+#include "ir_optimization.h"

+#include "ir_print_visitor.h"

+#include "program.h"

+#include "loop_analysis.h"

+

+extern "C" struct gl_shader *

+_mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type);

+

+extern "C" void

+_mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,

+                       struct gl_shader *sh);

+

+/* Copied from shader_api.c for the stand-alone compiler.

+ */

+void

+_mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,

+                       struct gl_shader *sh)

+{

+   *ptr = sh;

+}

+

+struct gl_shader *

+_mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type)

+{

+   struct gl_shader *shader;

+

+   (void) ctx;

+

+   assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER);

+   shader = talloc_zero(NULL, struct gl_shader);

+   if (shader) {

+      shader->Type = type;

+      shader->Name = name;

+      shader->RefCount = 1;

+   }

+   return shader;

+}

+

+static void

+initialize_context(struct gl_context *ctx, gl_api api)

+{

+   memset(ctx, 0, sizeof(*ctx));

+

+   ctx->API = api;

+

+   ctx->Extensions.ARB_draw_buffers = GL_TRUE;

+   ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;

+   ctx->Extensions.EXT_texture_array = GL_TRUE;

+   ctx->Extensions.NV_texture_rectangle = GL_TRUE;

+

+   /* 1.10 minimums. */

+   ctx->Const.MaxLights = 8;

+   ctx->Const.MaxClipPlanes = 8;

+   ctx->Const.MaxTextureUnits = 2;

+

+   /* More than the 1.10 minimum to appease parser tests taken from

+    * apps that (hopefully) already checked the number of coords.

+    */

+   ctx->Const.MaxTextureCoordUnits = 4;

+

+   ctx->Const.VertexProgram.MaxAttribs = 16;

+   ctx->Const.VertexProgram.MaxUniformComponents = 512;

+   ctx->Const.MaxVarying = 8;

+   ctx->Const.MaxVertexTextureImageUnits = 0;

+   ctx->Const.MaxCombinedTextureImageUnits = 2;

+   ctx->Const.MaxTextureImageUnits = 2;

+   ctx->Const.FragmentProgram.MaxUniformComponents = 64;

+

+   ctx->Const.MaxDrawBuffers = 2;

+

+   ctx->Driver.NewShader = _mesa_new_shader;

+}

+

+/* Returned string will have 'ctx' as its talloc owner. */

+static char *

+load_text_file(void *ctx, const char *file_name)

+{

+	char *text = NULL;

+	struct stat st;

+	ssize_t total_read = 0;

+	int fd = open(file_name, O_RDONLY);

+

+	if (fd < 0) {

+		return NULL;

+	}

+

+	if (fstat(fd, & st) == 0) {

+	   text = (char *) talloc_size(ctx, st.st_size + 1);

+		if (text != NULL) {

+			do {

+				ssize_t bytes = read(fd, text + total_read,

+						     st.st_size - total_read);

+				if (bytes < 0) {

+					free(text);

+					text = NULL;

+					break;

+				}

+

+				if (bytes == 0) {

+					break;

+				}

+

+				total_read += bytes;

+			} while (total_read < st.st_size);

+

+			text[total_read] = '\0';

+		}

+	}

+

+	close(fd);

+

+	return text;

+}

+

+int glsl_es = 0;

+int dump_ast = 0;

+int dump_hir = 0;

+int dump_lir = 0;

+int do_link = 0;

+

+const struct option compiler_opts[] = {

+   { "glsl-es",  0, &glsl_es,  1 },

+   { "dump-ast", 0, &dump_ast, 1 },

+   { "dump-hir", 0, &dump_hir, 1 },

+   { "dump-lir", 0, &dump_lir, 1 },

+   { "link",     0, &do_link,  1 },

+   { NULL, 0, NULL, 0 }

+};

+

+/**

+ * \brief Print proper usage and exit with failure.

+ */

+void

+usage_fail(const char *name)

+{

+

+   const char *header =

+      "usage: %s [options] <file.vert | file.geom | file.frag>\n"

+      "\n"

+      "Possible options are:\n";

+   printf(header, name, name);

+   for (const struct option *o = compiler_opts; o->name != 0; ++o) {

+      printf("    --%s\n", o->name);

+   }

+   exit(EXIT_FAILURE);

+}

+

+

+void

+compile_shader(struct gl_context *ctx, struct gl_shader *shader)

+{

+   struct _mesa_glsl_parse_state *state =

+      new(shader) _mesa_glsl_parse_state(ctx, shader->Type, shader);

+

+   const char *source = shader->Source;

+   state->error = preprocess(state, &source, &state->info_log,

+			     state->extensions, ctx->API);

+

+   if (!state->error) {

+      _mesa_glsl_lexer_ctor(state, source);

+      _mesa_glsl_parse(state);

+      _mesa_glsl_lexer_dtor(state);

+   }

+

+   if (dump_ast) {

+      foreach_list_const(n, &state->translation_unit) {

+	 ast_node *ast = exec_node_data(ast_node, n, link);

+	 ast->print();

+      }

+      printf("\n\n");

+   }

+

+   shader->ir = new(shader) exec_list;

+   if (!state->error && !state->translation_unit.is_empty())

+      _mesa_ast_to_hir(shader->ir, state);

+

+   /* Print out the unoptimized IR. */

+   if (!state->error && dump_hir) {

+      validate_ir_tree(shader->ir);

+      _mesa_print_ir(shader->ir, state);

+   }

+

+   /* Optimization passes */

+   if (!state->error && !shader->ir->is_empty()) {

+      bool progress;

+      do {

+	 progress = do_common_optimization(shader->ir, false, 32);

+      } while (progress);

+

+      validate_ir_tree(shader->ir);

+   }

+

+

+   /* Print out the resulting IR */

+   if (!state->error && dump_lir) {

+      _mesa_print_ir(shader->ir, state);

+   }

+

+   shader->symbols = state->symbols;

+   shader->CompileStatus = !state->error;

+   shader->Version = state->language_version;

+   memcpy(shader->builtins_to_link, state->builtins_to_link,

+	  sizeof(shader->builtins_to_link[0]) * state->num_builtins_to_link);

+   shader->num_builtins_to_link = state->num_builtins_to_link;

+

+   if (shader->InfoLog)

+      talloc_free(shader->InfoLog);

+

+   shader->InfoLog = state->info_log;

+

+   /* Retain any live IR, but trash the rest. */

+   reparent_ir(shader->ir, shader);

+

+   talloc_free(state);

+

+   return;

+}

+

+int

+main(int argc, char **argv)

+{

+   int status = EXIT_SUCCESS;

+   struct gl_context local_ctx;

+   struct gl_context *ctx = &local_ctx;

+

+   int c;

+   int idx = 0;

+   while ((c = getopt_long(argc, argv, "", compiler_opts, &idx)) != -1)

+      /* empty */ ;

+

+

+   if (argc <= optind)

+      usage_fail(argv[0]);

+

+   initialize_context(ctx, (glsl_es) ? API_OPENGLES2 : API_OPENGL);

+

+   struct gl_shader_program *whole_program;

+

+   whole_program = talloc_zero (NULL, struct gl_shader_program);

+   assert(whole_program != NULL);

+

+   for (/* empty */; argc > optind; optind++) {

+      whole_program->Shaders = (struct gl_shader **)

+	 talloc_realloc(whole_program, whole_program->Shaders,

+			struct gl_shader *, whole_program->NumShaders + 1);

+      assert(whole_program->Shaders != NULL);

+

+      struct gl_shader *shader = talloc_zero(whole_program, gl_shader);

+

+      whole_program->Shaders[whole_program->NumShaders] = shader;

+      whole_program->NumShaders++;

+

+      const unsigned len = strlen(argv[optind]);

+      if (len < 6)

+	 usage_fail(argv[0]);

+

+      const char *const ext = & argv[optind][len - 5];

+      if (strncmp(".vert", ext, 5) == 0)

+	 shader->Type = GL_VERTEX_SHADER;

+      else if (strncmp(".geom", ext, 5) == 0)

+	 shader->Type = GL_GEOMETRY_SHADER;

+      else if (strncmp(".frag", ext, 5) == 0)

+	 shader->Type = GL_FRAGMENT_SHADER;

+      else

+	 usage_fail(argv[0]);

+

+      shader->Source = load_text_file(whole_program, argv[optind]);

+      if (shader->Source == NULL) {

+	 printf("File \"%s\" does not exist.\n", argv[optind]);

+	 exit(EXIT_FAILURE);

+      }

+

+      compile_shader(ctx, shader);

+

+      if (!shader->CompileStatus) {

+	 printf("Info log for %s:\n%s\n", argv[optind], shader->InfoLog);

+	 status = EXIT_FAILURE;

+	 break;

+      }

+   }

+

+   if ((status == EXIT_SUCCESS) && do_link)  {

+      link_shaders(ctx, whole_program);

+      status = (whole_program->LinkStatus) ? EXIT_SUCCESS : EXIT_FAILURE;

+

+      if (strlen(whole_program->InfoLog) > 0)

+	 printf("Info log for linking:\n%s\n", whole_program->InfoLog);

+   }

+

+   for (unsigned i = 0; i < MESA_SHADER_TYPES; i++)

+      talloc_free(whole_program->_LinkedShaders[i]);

+

+   talloc_free(whole_program);

+   _mesa_glsl_release_types();

+   _mesa_glsl_release_functions();

+

+   return status;

+}