diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/mesa/state_tracker/st_program.c | 326 | ||||
-rw-r--r-- | src/mesa/state_tracker/st_program.h | 15 |
2 files changed, 162 insertions, 179 deletions
diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c index ca01d2e1976..a4f47edfcd3 100644 --- a/src/mesa/state_tracker/st_program.c +++ b/src/mesa/state_tracker/st_program.c @@ -416,151 +416,6 @@ st_get_vp_variant(struct st_context *st, return vpv; } -/** - * Translate Mesa fragment shader attributes to TGSI attributes. - * \return GL_TRUE if color output should be written to all render targets, - * GL_FALSE if not - */ -GLboolean -st_prepare_fragment_program(struct gl_context *ctx, - struct st_fragment_program *stfp) -{ - GLuint attr; - const GLbitfield inputsRead = stfp->Base.Base.InputsRead; - GLboolean write_all = GL_FALSE; - - /* - * Convert Mesa program inputs to TGSI input register semantics. - */ - for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) { - if (inputsRead & (1 << attr)) { - const GLuint slot = stfp->num_inputs++; - - stfp->input_to_index[attr] = slot; - - switch (attr) { - case FRAG_ATTRIB_WPOS: - stfp->input_semantic_name[slot] = TGSI_SEMANTIC_POSITION; - stfp->input_semantic_index[slot] = 0; - stfp->interp_mode[slot] = TGSI_INTERPOLATE_LINEAR; - break; - case FRAG_ATTRIB_COL0: - stfp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; - stfp->input_semantic_index[slot] = 0; - stfp->interp_mode[slot] = TGSI_INTERPOLATE_LINEAR; - break; - case FRAG_ATTRIB_COL1: - stfp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; - stfp->input_semantic_index[slot] = 1; - stfp->interp_mode[slot] = TGSI_INTERPOLATE_LINEAR; - break; - case FRAG_ATTRIB_FOGC: - stfp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG; - stfp->input_semantic_index[slot] = 0; - stfp->interp_mode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; - break; - case FRAG_ATTRIB_FACE: - stfp->input_semantic_name[slot] = TGSI_SEMANTIC_FACE; - stfp->input_semantic_index[slot] = 0; - stfp->interp_mode[slot] = TGSI_INTERPOLATE_CONSTANT; - break; - /* In most cases, there is nothing special about these - * inputs, so adopt a convention to use the generic - * semantic name and the mesa FRAG_ATTRIB_ number as the - * index. - * - * All that is required is that the vertex shader labels - * its own outputs similarly, and that the vertex shader - * generates at least every output required by the - * fragment shader plus fixed-function hardware (such as - * BFC). - * - * There is no requirement that semantic indexes start at - * zero or be restricted to a particular range -- nobody - * should be building tables based on semantic index. - */ - case FRAG_ATTRIB_PNTC: - case FRAG_ATTRIB_TEX0: - case FRAG_ATTRIB_TEX1: - case FRAG_ATTRIB_TEX2: - case FRAG_ATTRIB_TEX3: - case FRAG_ATTRIB_TEX4: - case FRAG_ATTRIB_TEX5: - case FRAG_ATTRIB_TEX6: - case FRAG_ATTRIB_TEX7: - case FRAG_ATTRIB_VAR0: - default: - /* Actually, let's try and zero-base this just for - * readability of the generated TGSI. - */ - assert(attr >= FRAG_ATTRIB_TEX0); - stfp->input_semantic_index[slot] = (attr - FRAG_ATTRIB_TEX0); - stfp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; - if (attr == FRAG_ATTRIB_PNTC) - stfp->interp_mode[slot] = TGSI_INTERPOLATE_LINEAR; - else - stfp->interp_mode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; - break; - } - } - else { - stfp->input_to_index[attr] = -1; - } - } - - /* - * Semantics and mapping for outputs - */ - { - uint numColors = 0; - GLbitfield64 outputsWritten = stfp->Base.Base.OutputsWritten; - - /* if z is written, emit that first */ - if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) { - stfp->output_semantic_name[stfp->num_outputs] = TGSI_SEMANTIC_POSITION; - stfp->output_semantic_index[stfp->num_outputs] = 0; - stfp->result_to_output[FRAG_RESULT_DEPTH] = stfp->num_outputs; - stfp->num_outputs++; - outputsWritten &= ~(1 << FRAG_RESULT_DEPTH); - } - - if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_STENCIL)) { - stfp->output_semantic_name[stfp->num_outputs] = TGSI_SEMANTIC_STENCIL; - stfp->output_semantic_index[stfp->num_outputs] = 0; - stfp->result_to_output[FRAG_RESULT_STENCIL] = stfp->num_outputs; - stfp->num_outputs++; - outputsWritten &= ~(1 << FRAG_RESULT_STENCIL); - } - - /* handle remaning outputs (color) */ - for (attr = 0; attr < FRAG_RESULT_MAX; attr++) { - if (outputsWritten & BITFIELD64_BIT(attr)) { - switch (attr) { - case FRAG_RESULT_DEPTH: - case FRAG_RESULT_STENCIL: - /* handled above */ - assert(0); - break; - case FRAG_RESULT_COLOR: - write_all = GL_TRUE; /* fallthrough */ - default: - assert(attr == FRAG_RESULT_COLOR || - (FRAG_RESULT_DATA0 <= attr && attr < FRAG_RESULT_MAX)); - stfp->output_semantic_name[stfp->num_outputs] = TGSI_SEMANTIC_COLOR; - stfp->output_semantic_index[stfp->num_outputs] = numColors; - stfp->result_to_output[attr] = stfp->num_outputs; - numColors++; - break; - } - - stfp->num_outputs++; - } - } - } - - return write_all; -} - /** * Translate a Mesa fragment shader into a TGSI shader using extra info in @@ -613,12 +468,155 @@ st_translate_fragment_program(struct st_context *st, if (!stfp->tgsi.tokens) { /* need to translate Mesa instructions to TGSI now */ + GLuint outputMapping[FRAG_RESULT_MAX]; + GLuint inputMapping[FRAG_ATTRIB_MAX]; + GLuint interpMode[PIPE_MAX_SHADER_INPUTS]; /* XXX size? */ + GLuint attr; + const GLbitfield inputsRead = stfp->Base.Base.InputsRead; struct ureg_program *ureg; - GLboolean write_all = st_prepare_fragment_program(st->ctx, stfp); + + GLboolean write_all = GL_FALSE; + + ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS]; + ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS]; + uint fs_num_inputs = 0; + + ubyte fs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; + ubyte fs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS]; + uint fs_num_outputs = 0; if (!stfp->glsl_to_tgsi) _mesa_remove_output_reads(&stfp->Base.Base, PROGRAM_OUTPUT); + /* + * Convert Mesa program inputs to TGSI input register semantics. + */ + for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) { + if (inputsRead & (1 << attr)) { + const GLuint slot = fs_num_inputs++; + + inputMapping[attr] = slot; + + switch (attr) { + case FRAG_ATTRIB_WPOS: + input_semantic_name[slot] = TGSI_SEMANTIC_POSITION; + input_semantic_index[slot] = 0; + interpMode[slot] = TGSI_INTERPOLATE_LINEAR; + break; + case FRAG_ATTRIB_COL0: + input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; + input_semantic_index[slot] = 0; + interpMode[slot] = TGSI_INTERPOLATE_LINEAR; + break; + case FRAG_ATTRIB_COL1: + input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; + input_semantic_index[slot] = 1; + interpMode[slot] = TGSI_INTERPOLATE_LINEAR; + break; + case FRAG_ATTRIB_FOGC: + input_semantic_name[slot] = TGSI_SEMANTIC_FOG; + input_semantic_index[slot] = 0; + interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; + break; + case FRAG_ATTRIB_FACE: + input_semantic_name[slot] = TGSI_SEMANTIC_FACE; + input_semantic_index[slot] = 0; + interpMode[slot] = TGSI_INTERPOLATE_CONSTANT; + break; + /* In most cases, there is nothing special about these + * inputs, so adopt a convention to use the generic + * semantic name and the mesa FRAG_ATTRIB_ number as the + * index. + * + * All that is required is that the vertex shader labels + * its own outputs similarly, and that the vertex shader + * generates at least every output required by the + * fragment shader plus fixed-function hardware (such as + * BFC). + * + * There is no requirement that semantic indexes start at + * zero or be restricted to a particular range -- nobody + * should be building tables based on semantic index. + */ + case FRAG_ATTRIB_PNTC: + case FRAG_ATTRIB_TEX0: + case FRAG_ATTRIB_TEX1: + case FRAG_ATTRIB_TEX2: + case FRAG_ATTRIB_TEX3: + case FRAG_ATTRIB_TEX4: + case FRAG_ATTRIB_TEX5: + case FRAG_ATTRIB_TEX6: + case FRAG_ATTRIB_TEX7: + case FRAG_ATTRIB_VAR0: + default: + /* Actually, let's try and zero-base this just for + * readability of the generated TGSI. + */ + assert(attr >= FRAG_ATTRIB_TEX0); + input_semantic_index[slot] = (attr - FRAG_ATTRIB_TEX0); + input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; + if (attr == FRAG_ATTRIB_PNTC) + interpMode[slot] = TGSI_INTERPOLATE_LINEAR; + else + interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; + break; + } + } + else { + inputMapping[attr] = -1; + } + } + + /* + * Semantics and mapping for outputs + */ + { + uint numColors = 0; + GLbitfield64 outputsWritten = stfp->Base.Base.OutputsWritten; + + /* if z is written, emit that first */ + if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) { + fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_POSITION; + fs_output_semantic_index[fs_num_outputs] = 0; + outputMapping[FRAG_RESULT_DEPTH] = fs_num_outputs; + fs_num_outputs++; + outputsWritten &= ~(1 << FRAG_RESULT_DEPTH); + } + + if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_STENCIL)) { + fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_STENCIL; + fs_output_semantic_index[fs_num_outputs] = 0; + outputMapping[FRAG_RESULT_STENCIL] = fs_num_outputs; + fs_num_outputs++; + outputsWritten &= ~(1 << FRAG_RESULT_STENCIL); + } + + /* handle remaning outputs (color) */ + for (attr = 0; attr < FRAG_RESULT_MAX; attr++) { + if (outputsWritten & BITFIELD64_BIT(attr)) { + switch (attr) { + case FRAG_RESULT_DEPTH: + case FRAG_RESULT_STENCIL: + /* handled above */ + assert(0); + break; + case FRAG_RESULT_COLOR: + write_all = GL_TRUE; /* fallthrough */ + default: + assert(attr == FRAG_RESULT_COLOR || + (FRAG_RESULT_DATA0 <= attr && attr < FRAG_RESULT_MAX)); + fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_COLOR; + fs_output_semantic_index[fs_num_outputs] = numColors; + outputMapping[attr] = fs_num_outputs; + numColors++; + break; + } + + fs_num_outputs++; + } + } + } + ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT ); if (ureg == NULL) return NULL; @@ -638,32 +636,32 @@ st_translate_fragment_program(struct st_context *st, stfp->glsl_to_tgsi, &stfp->Base.Base, /* inputs */ - stfp->num_inputs, - stfp->input_to_index, - stfp->input_semantic_name, - stfp->input_semantic_index, - stfp->interp_mode, + fs_num_inputs, + inputMapping, + input_semantic_name, + input_semantic_index, + interpMode, /* outputs */ - stfp->num_outputs, - stfp->result_to_output, - stfp->output_semantic_name, - stfp->output_semantic_index, FALSE ); + fs_num_outputs, + outputMapping, + fs_output_semantic_name, + fs_output_semantic_index, FALSE ); else st_translate_mesa_program(st->ctx, TGSI_PROCESSOR_FRAGMENT, ureg, &stfp->Base.Base, /* inputs */ - stfp->num_inputs, - stfp->input_to_index, - stfp->input_semantic_name, - stfp->input_semantic_index, - stfp->interp_mode, + fs_num_inputs, + inputMapping, + input_semantic_name, + input_semantic_index, + interpMode, /* outputs */ - stfp->num_outputs, - stfp->result_to_output, - stfp->output_semantic_name, - stfp->output_semantic_index, FALSE ); + fs_num_outputs, + outputMapping, + fs_output_semantic_name, + fs_output_semantic_index, FALSE ); stfp->tgsi.tokens = ureg_get_tokens( ureg, NULL ); ureg_destroy( ureg ); diff --git a/src/mesa/state_tracker/st_program.h b/src/mesa/state_tracker/st_program.h index 67723de6d53..699b6e8ccb7 100644 --- a/src/mesa/state_tracker/st_program.h +++ b/src/mesa/state_tracker/st_program.h @@ -85,21 +85,6 @@ struct st_fragment_program { struct gl_fragment_program Base; struct glsl_to_tgsi_visitor* glsl_to_tgsi; - - /** maps a Mesa FRAG_ATTRIB_x to a packed TGSI input index */ - GLuint input_to_index[FRAG_ATTRIB_MAX]; - /** maps a TGSI input index back to a Mesa FRAG_ATTRIB_x */ - GLuint index_to_input[PIPE_MAX_SHADER_INPUTS]; - ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS]; - ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS]; - GLuint num_inputs; - GLuint interp_mode[PIPE_MAX_SHADER_INPUTS]; /* XXX size? */ - - /** Maps FRAG_RESULT_x to slot */ - GLuint result_to_output[FRAG_RESULT_MAX]; - ubyte output_semantic_name[FRAG_RESULT_MAX]; - ubyte output_semantic_index[FRAG_RESULT_MAX]; - GLuint num_outputs; struct pipe_shader_state tgsi; |