diff options
| author | Brian <brian.paul@tungstengraphics.com> | 2007-10-09 16:56:25 -0600 |
|---|---|---|
| committer | Brian <brian.paul@tungstengraphics.com> | 2007-10-09 16:56:25 -0600 |
| commit | d4c3f26662c48235462ae25b84c7b63e48af1c22 (patch) | |
| tree | 80f13baabbdf192ed9f2f30b2df90c23e98fa3ad /src/mesa | |
| parent | 11a46c61e0552c055513050ef3ec28050a143f91 (diff) | |
start on a unified vertex/fragment program translation function
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c b/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c index 750314fb43..1bf3be40dd 100644 --- a/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c +++ b/src/mesa/pipe/tgsi/mesa/mesa_to_tgsi.c @@ -546,6 +546,200 @@ find_temporaries(const struct gl_program *program, }
+
+
+/**
+ * Translate Mesa program to TGSI format.
+ * \param program the program to translate
+ * \param numInputs number of input registers used
+ * \param inputMapping maps Mesa fragment program inputs to TGSI generic
+ * input indexes
+ * \param inputSemanticName the TGSI_SEMANTIC flag for each input
+ * \param inputSemanticIndex the semantic index (ex: which texcoord) for each input
+ * \param interpMode the TGSI_INTERPOLATE_LINEAR/PERSP mode for each input
+
+ * \param numOutputs number of output registers used
+ * \param outputMapping maps Mesa fragment program outputs to TGSI
+ * generic outputs
+ * \param outputSemanticName the TGSI_SEMANTIC flag for each output
+ * \param outputSemanticIndex the semantic index (ex: which texcoord) for each output
+ * \param tokens array to store translated tokens in
+ * \param maxTokens size of the tokens array
+ *
+ */
+#if 0
+static GLboolean
+tgsi_translate_program(
+ uint procType,
+ const struct gl_program *program,
+ GLuint numInputs,
+ const GLuint inputMapping[],
+ const ubyte inputSemanticName[],
+ const ubyte inputSemanticIndex[],
+ const GLuint interpMode[],
+ GLuint numOutputs,
+ const GLuint outputMapping[],
+ const ubyte outputSemanticName[],
+ const ubyte outputSemanticIndex[],
+ struct tgsi_token *tokens,
+ GLuint maxTokens )
+{
+ GLuint i;
+ GLuint ti; /* token index */
+ struct tgsi_header *header;
+ struct tgsi_processor *processor;
+ struct tgsi_full_instruction fullinst;
+ GLuint preamble_size = 0;
+
+ assert(procType == TGSI_PROCESSOR_FRAGMENT ||
+ procType == TGSI_PROCESSOR_VERTEX);
+
+ *(struct tgsi_version *) &tokens[0] = tgsi_build_version();
+
+ header = (struct tgsi_header *) &tokens[1];
+ *header = tgsi_build_header();
+
+ processor = (struct tgsi_processor *) &tokens[2];
+ *processor = tgsi_build_processor( procType, header );
+
+ ti = 3;
+
+ /*
+ * Declare input attributes.
+ */
+ if (procType == TGSI_PROCESSOR_FRAGMENT) {
+ for (i = 0; i < numInputs; i++) {
+ struct tgsi_full_declaration fulldecl;
+ switch (inputSemanticName[i]) {
+ case TGSI_SEMANTIC_POSITION:
+ /* Fragment XY pos */
+ fulldecl = make_input_decl(i,
+ TGSI_INTERPOLATE_CONSTANT,
+ TGSI_WRITEMASK_XY,
+ GL_TRUE, TGSI_SEMANTIC_POSITION, 0 );
+ ti += tgsi_build_full_declaration(
+ &fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ /* Fragment ZW pos */
+ fulldecl = make_input_decl(i,
+ TGSI_INTERPOLATE_LINEAR,
+ TGSI_WRITEMASK_ZW,
+ GL_TRUE, TGSI_SEMANTIC_POSITION, 0 );
+ ti += tgsi_build_full_declaration(&fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ break;
+ default:
+ fulldecl = make_input_decl(i,
+ interpMode[i],
+ TGSI_WRITEMASK_XYZW,
+ GL_TRUE, inputSemanticName[i],
+ inputSemanticIndex[i]);
+ ti += tgsi_build_full_declaration(&fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ break;
+ }
+ }
+ }
+ else {
+ /* vertex prog */
+ for (i = 0; i < numInputs; i++) {
+ struct tgsi_full_declaration fulldecl;
+ fulldecl = make_input_decl(i,
+ TGSI_INTERPOLATE_ATTRIB,
+ TGSI_WRITEMASK_XYZW,
+ GL_FALSE, inputSemanticName[i],
+ inputSemanticIndex[i]);
+ ti += tgsi_build_full_declaration(&fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ }
+ }
+
+ /*
+ * Declare output attributes.
+ */
+ if (procType == TGSI_PROCESSOR_FRAGMENT) {
+ for (i = 0; i < numOutputs; i++) {
+ struct tgsi_full_declaration fulldecl;
+ switch (outputSemanticName[i]) {
+ case TGSI_SEMANTIC_POSITION:
+ fulldecl = make_output_decl(i,
+ TGSI_SEMANTIC_POSITION, 0, /* Z / Depth */
+ TGSI_WRITEMASK_Z );
+ break;
+ case TGSI_SEMANTIC_COLOR:
+ fulldecl = make_output_decl(i,
+ TGSI_SEMANTIC_COLOR, 0,
+ TGSI_WRITEMASK_XYZW );
+ break;
+ default:
+ abort();
+ }
+ ti += tgsi_build_full_declaration(&fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ }
+ }
+ else {
+ /* vertex prog */
+ for (i = 0; i < numOutputs; i++) {
+ struct tgsi_full_declaration fulldecl;
+ fulldecl = make_output_decl(i,
+ outputSemanticName[i],
+ outputSemanticIndex[i],
+ TGSI_WRITEMASK_XYZW );
+ ti += tgsi_build_full_declaration(&fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ }
+ }
+
+ /* temporary decls */
+ {
+ GLuint tempsUsed[MAX_PROGRAM_TEMPS];
+ uint numTemps = find_temporaries(program, tempsUsed);
+ for (i = 0; i < numTemps; i++) {
+ struct tgsi_full_declaration fulldecl;
+ fulldecl = make_temp_decl(tempsUsed[i]);
+ ti += tgsi_build_full_declaration(
+ &fulldecl,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ }
+ }
+
+ for( i = 0; i < program->NumInstructions; i++ ) {
+ compile_instruction(
+ &program->Instructions[i],
+ &fullinst,
+ inputMapping,
+ outputMapping,
+ preamble_size,
+ procType );
+
+ ti += tgsi_build_full_instruction(
+ &fullinst,
+ &tokens[ti],
+ header,
+ maxTokens - ti );
+ }
+
+ return GL_TRUE;
+}
+#endif
+
+
+
/**
* Convert Mesa fragment program to TGSI format.
* \param inputMapping maps Mesa fragment program inputs to TGSI generic
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