diff options
| -rw-r--r-- | src/mesa/SConscript | 1 | ||||
| -rw-r--r-- | src/mesa/shader/shader_api.c | 861 | ||||
| -rw-r--r-- | src/mesa/shader/shader_api.h | 4 | ||||
| -rw-r--r-- | src/mesa/shader/uniforms.c | 913 | ||||
| -rw-r--r-- | src/mesa/shader/uniforms.h | 33 | ||||
| -rw-r--r-- | src/mesa/sources.mak | 3 |
6 files changed, 957 insertions, 858 deletions
diff --git a/src/mesa/SConscript b/src/mesa/SConscript index 3385bf6f393..34b7f4e8b7c 100644 --- a/src/mesa/SConscript +++ b/src/mesa/SConscript @@ -217,6 +217,7 @@ if env['platform'] != 'winddk': 'shader/programopt.c', 'shader/symbol_table.c', 'shader/shader_api.c', + 'shader/uniforms.c', ] slang_sources = [ diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c index cebe899265b..25853823a1c 100644 --- a/src/mesa/shader/shader_api.c +++ b/src/mesa/shader/shader_api.c @@ -44,6 +44,7 @@ #include "shader/prog_statevars.h" #include "shader/prog_uniform.h" #include "shader/shader_api.h" +#include "shader/uniforms.h" #include "shader/slang/slang_compile.h" #include "shader/slang/slang_link.h" #include "main/dispatch.h" @@ -222,7 +223,7 @@ _mesa_lookup_shader_program(GLcontext *ctx, GLuint name) /** * As above, but record an error if program is not found. */ -static struct gl_shader_program * +struct gl_shader_program * _mesa_lookup_shader_program_err(GLcontext *ctx, GLuint name, const char *caller) { @@ -840,77 +841,6 @@ _mesa_sizeof_glsl_type(GLenum type) } -static GLenum -base_uniform_type(GLenum type) -{ - switch (type) { -#if 0 /* not needed, for now */ - case GL_BOOL: - case GL_BOOL_VEC2: - case GL_BOOL_VEC3: - case GL_BOOL_VEC4: - return GL_BOOL; -#endif - case GL_FLOAT: - case GL_FLOAT_VEC2: - case GL_FLOAT_VEC3: - case GL_FLOAT_VEC4: - return GL_FLOAT; - case GL_UNSIGNED_INT: - case GL_UNSIGNED_INT_VEC2: - case GL_UNSIGNED_INT_VEC3: - case GL_UNSIGNED_INT_VEC4: - return GL_UNSIGNED_INT; - case GL_INT: - case GL_INT_VEC2: - case GL_INT_VEC3: - case GL_INT_VEC4: - return GL_INT; - default: - _mesa_problem(NULL, "Invalid type in base_uniform_type()"); - return GL_FLOAT; - } -} - - -static GLboolean -is_boolean_type(GLenum type) -{ - switch (type) { - case GL_BOOL: - case GL_BOOL_VEC2: - case GL_BOOL_VEC3: - case GL_BOOL_VEC4: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -static GLboolean -is_sampler_type(GLenum type) -{ - switch (type) { - case GL_SAMPLER_1D: - case GL_SAMPLER_2D: - case GL_SAMPLER_3D: - case GL_SAMPLER_CUBE: - case GL_SAMPLER_1D_SHADOW: - case GL_SAMPLER_2D_SHADOW: - case GL_SAMPLER_2D_RECT_ARB: - case GL_SAMPLER_2D_RECT_SHADOW_ARB: - case GL_SAMPLER_1D_ARRAY_EXT: - case GL_SAMPLER_2D_ARRAY_EXT: - case GL_SAMPLER_1D_ARRAY_SHADOW_EXT: - case GL_SAMPLER_2D_ARRAY_SHADOW_EXT: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - static void _mesa_get_active_attrib(GLcontext *ctx, GLuint program, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, @@ -943,93 +873,6 @@ _mesa_get_active_attrib(GLcontext *ctx, GLuint program, GLuint index, } -static struct gl_program_parameter * -get_uniform_parameter(const struct gl_shader_program *shProg, GLuint index) -{ - const struct gl_program *prog = NULL; - GLint progPos; - - progPos = shProg->Uniforms->Uniforms[index].VertPos; - if (progPos >= 0) { - prog = &shProg->VertexProgram->Base; - } - else { - progPos = shProg->Uniforms->Uniforms[index].FragPos; - if (progPos >= 0) { - prog = &shProg->FragmentProgram->Base; - } - } - - if (!prog || progPos < 0) - return NULL; /* should never happen */ - - return &prog->Parameters->Parameters[progPos]; -} - - -/** - * Called via ctx->Driver.GetActiveUniform(). - */ -static void -_mesa_get_active_uniform(GLcontext *ctx, GLuint program, GLuint index, - GLsizei maxLength, GLsizei *length, GLint *size, - GLenum *type, GLchar *nameOut) -{ - const struct gl_shader_program *shProg; - const struct gl_program *prog = NULL; - const struct gl_program_parameter *param; - GLint progPos; - - shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform"); - if (!shProg) - return; - - if (!shProg->Uniforms || index >= shProg->Uniforms->NumUniforms) { - _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform(index)"); - return; - } - - progPos = shProg->Uniforms->Uniforms[index].VertPos; - if (progPos >= 0) { - prog = &shProg->VertexProgram->Base; - } - else { - progPos = shProg->Uniforms->Uniforms[index].FragPos; - if (progPos >= 0) { - prog = &shProg->FragmentProgram->Base; - } - } - - if (!prog || progPos < 0) - return; /* should never happen */ - - ASSERT(progPos < prog->Parameters->NumParameters); - param = &prog->Parameters->Parameters[progPos]; - - if (nameOut) { - _mesa_copy_string(nameOut, maxLength, length, param->Name); - } - - if (size) { - GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); - if ((GLint) param->Size > typeSize) { - /* This is an array. - * Array elements are placed on vector[4] boundaries so they're - * a multiple of four floats. We round typeSize up to next multiple - * of four to get the right size below. - */ - typeSize = (typeSize + 3) & ~3; - } - /* Note that the returned size is in units of the <type>, not bytes */ - *size = param->Size / typeSize; - } - - if (type) { - *type = param->DataType; - } -} - - /** * Called via ctx->Driver.GetAttachedShaders(). */ @@ -1209,282 +1052,6 @@ _mesa_get_shader_source(GLcontext *ctx, GLuint shader, GLsizei maxLength, } -static void -get_matrix_dims(GLenum type, GLint *rows, GLint *cols) -{ - switch (type) { - case GL_FLOAT_MAT2: - *rows = *cols = 2; - break; - case GL_FLOAT_MAT2x3: - *rows = 3; - *cols = 2; - break; - case GL_FLOAT_MAT2x4: - *rows = 4; - *cols = 2; - break; - case GL_FLOAT_MAT3: - *rows = 3; - *cols = 3; - break; - case GL_FLOAT_MAT3x2: - *rows = 2; - *cols = 3; - break; - case GL_FLOAT_MAT3x4: - *rows = 4; - *cols = 3; - break; - case GL_FLOAT_MAT4: - *rows = 4; - *cols = 4; - break; - case GL_FLOAT_MAT4x2: - *rows = 2; - *cols = 4; - break; - case GL_FLOAT_MAT4x3: - *rows = 3; - *cols = 4; - break; - default: - *rows = *cols = 0; - } -} - - -/** - * Determine the number of rows and columns occupied by a uniform - * according to its datatype. For non-matrix types (such as GL_FLOAT_VEC4), - * the number of rows = 1 and cols = number of elements in the vector. - */ -static void -get_uniform_rows_cols(const struct gl_program_parameter *p, - GLint *rows, GLint *cols) -{ - get_matrix_dims(p->DataType, rows, cols); - if (*rows == 0 && *cols == 0) { - /* not a matrix type, probably a float or vector */ - if (p->Size <= 4) { - *rows = 1; - *cols = p->Size; - } - else { - *rows = p->Size / 4 + 1; - if (p->Size % 4 == 0) - *cols = 4; - else - *cols = p->Size % 4; - } - } -} - - -/** - * Helper for get_uniform[fi]v() functions. - * Given a shader program name and uniform location, return a pointer - * to the shader program and return the program parameter position. - */ -static void -lookup_uniform_parameter(GLcontext *ctx, GLuint program, GLint location, - struct gl_program **progOut, GLint *paramPosOut) -{ - struct gl_shader_program *shProg - = _mesa_lookup_shader_program_err(ctx, program, "glGetUniform[if]v"); - struct gl_program *prog = NULL; - GLint progPos = -1; - - /* if shProg is NULL, we'll have already recorded an error */ - - if (shProg) { - if (!shProg->Uniforms || - location < 0 || - location >= (GLint) shProg->Uniforms->NumUniforms) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(location)"); - } - else { - /* OK, find the gl_program and program parameter location */ - progPos = shProg->Uniforms->Uniforms[location].VertPos; - if (progPos >= 0) { - prog = &shProg->VertexProgram->Base; - } - else { - progPos = shProg->Uniforms->Uniforms[location].FragPos; - if (progPos >= 0) { - prog = &shProg->FragmentProgram->Base; - } - } - } - } - - *progOut = prog; - *paramPosOut = progPos; -} - - -/** - * Called via ctx->Driver.GetUniformfv(). - */ -static void -_mesa_get_uniformfv(GLcontext *ctx, GLuint program, GLint location, - GLfloat *params) -{ - struct gl_program *prog; - GLint paramPos; - - lookup_uniform_parameter(ctx, program, location, &prog, ¶mPos); - - if (prog) { - const struct gl_program_parameter *p = - &prog->Parameters->Parameters[paramPos]; - GLint rows, cols, i, j, k; - - get_uniform_rows_cols(p, &rows, &cols); - - k = 0; - for (i = 0; i < rows; i++) { - for (j = 0; j < cols; j++ ) { - params[k++] = prog->Parameters->ParameterValues[paramPos+i][j]; - } - } - } -} - - -/** - * Called via ctx->Driver.GetUniformiv(). - * \sa _mesa_get_uniformfv, only difference is a cast. - */ -static void -_mesa_get_uniformiv(GLcontext *ctx, GLuint program, GLint location, - GLint *params) -{ - struct gl_program *prog; - GLint paramPos; - - lookup_uniform_parameter(ctx, program, location, &prog, ¶mPos); - - if (prog) { - const struct gl_program_parameter *p = - &prog->Parameters->Parameters[paramPos]; - GLint rows, cols, i, j, k; - - get_uniform_rows_cols(p, &rows, &cols); - - k = 0; - for (i = 0; i < rows; i++) { - for (j = 0; j < cols; j++ ) { - params[k++] = (GLint) prog->Parameters->ParameterValues[paramPos+i][j]; - } - } - } -} - - -/** - * The value returned by GetUniformLocation actually encodes two things: - * 1. the index into the prog->Uniforms[] array for the uniform - * 2. an offset in the prog->ParameterValues[] array for specifying array - * elements or structure fields. - * This function merges those two values. - */ -static void -merge_location_offset(GLint *location, GLint offset) -{ - *location = *location | (offset << 16); -} - - -/** - * Seperate the uniform location and parameter offset. See above. - */ -static void -split_location_offset(GLint *location, GLint *offset) -{ - *offset = (*location >> 16); - *location = *location & 0xffff; -} - - -/** - * Called via ctx->Driver.GetUniformLocation(). - * - * The return value will encode two values, the uniform location and an - * offset (used for arrays, structs). - */ -static GLint -_mesa_get_uniform_location(GLcontext *ctx, GLuint program, const GLchar *name) -{ - GLint offset = 0, location = -1; - - struct gl_shader_program *shProg = - _mesa_lookup_shader_program_err(ctx, program, "glGetUniformLocation"); - - if (!shProg) - return -1; - - if (shProg->LinkStatus == GL_FALSE) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(program)"); - return -1; - } - - /* XXX we should return -1 if the uniform was declared, but not - * actually used. - */ - - /* XXX we need to be able to parse uniform names for structs and arrays - * such as: - * mymatrix[1] - * mystruct.field1 - */ - - { - /* handle 1-dimension arrays here... */ - char *c = strchr(name, '['); - if (c) { - /* truncate name at [ */ - const GLint len = c - name; - GLchar *newName = malloc(len + 1); - if (!newName) - return -1; /* out of mem */ - memcpy(newName, name, len); - newName[len] = 0; - - location = _mesa_lookup_uniform(shProg->Uniforms, newName); - if (location >= 0) { - const GLint element = atoi(c + 1); - if (element > 0) { - /* get type of the uniform array element */ - struct gl_program_parameter *p; - p = get_uniform_parameter(shProg, location); - if (p) { - GLint rows, cols; - get_matrix_dims(p->DataType, &rows, &cols); - if (rows < 1) - rows = 1; - offset = element * rows; - } - } - } - - free(newName); - } - } - - if (location < 0) { - location = _mesa_lookup_uniform(shProg->Uniforms, name); - } - - if (location >= 0) { - merge_location_offset(&location, offset); - } - - return location; -} - - - /** * Called via ctx->Driver.ShaderSource() */ @@ -1692,422 +1259,6 @@ _mesa_update_shader_textures_used(struct gl_program *prog) /** - * Check if the type given by userType is allowed to set a uniform of the - * target type. Generally, equivalence is required, but setting Boolean - * uniforms can be done with glUniformiv or glUniformfv. - */ -static GLboolean -compatible_types(GLenum userType, GLenum targetType) -{ - if (userType == targetType) - return GL_TRUE; - - if (targetType == GL_BOOL && (userType == GL_FLOAT || - userType == GL_UNSIGNED_INT || - userType == GL_INT)) - return GL_TRUE; - - if (targetType == GL_BOOL_VEC2 && (userType == GL_FLOAT_VEC2 || - userType == GL_UNSIGNED_INT_VEC2 || - userType == GL_INT_VEC2)) - return GL_TRUE; - - if (targetType == GL_BOOL_VEC3 && (userType == GL_FLOAT_VEC3 || - userType == GL_UNSIGNED_INT_VEC3 || - userType == GL_INT_VEC3)) - return GL_TRUE; - - if (targetType == GL_BOOL_VEC4 && (userType == GL_FLOAT_VEC4 || - userType == GL_UNSIGNED_INT_VEC4 || - userType == GL_INT_VEC4)) - return GL_TRUE; - - if (is_sampler_type(targetType) && userType == GL_INT) - return GL_TRUE; - - return GL_FALSE; -} - - -/** - * Set the value of a program's uniform variable. - * \param program the program whose uniform to update - * \param index the index of the program parameter for the uniform - * \param offset additional parameter slot offset (for arrays) - * \param type the incoming datatype of 'values' - * \param count the number of uniforms to set - * \param elems number of elements per uniform (1, 2, 3 or 4) - * \param values the new values, of datatype 'type' - */ -static void -set_program_uniform(GLcontext *ctx, struct gl_program *program, - GLint index, GLint offset, - GLenum type, GLsizei count, GLint elems, - const void *values) -{ - const struct gl_program_parameter *param = - &program->Parameters->Parameters[index]; - - assert(offset >= 0); - assert(elems >= 1); - assert(elems <= 4); - - if (!compatible_types(type, param->DataType)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(type mismatch)"); - return; - } - - if (index + offset > (GLint) program->Parameters->Size) { - /* out of bounds! */ - return; - } - - if (param->Type == PROGRAM_SAMPLER) { - /* This controls which texture unit which is used by a sampler */ - GLboolean changed = GL_FALSE; - GLint i; - - /* this should have been caught by the compatible_types() check */ - ASSERT(type == GL_INT); - - /* loop over number of samplers to change */ - for (i = 0; i < count; i++) { - GLuint sampler = - (GLuint) program->Parameters->ParameterValues[index + offset + i][0]; - GLuint texUnit = ((GLuint *) values)[i]; - - /* check that the sampler (tex unit index) is legal */ - if (texUnit >= ctx->Const.MaxTextureImageUnits) { - _mesa_error(ctx, GL_INVALID_VALUE, - "glUniform1(invalid sampler/tex unit index for '%s')", - param->Name); - return; - } - - /* This maps a sampler to a texture unit: */ - if (sampler < MAX_SAMPLERS) { -#if 0 - printf("Set program %p sampler %d '%s' to unit %u\n", - program, sampler, param->Name, texUnit); -#endif - if (program->SamplerUnits[sampler] != texUnit) { - program->SamplerUnits[sampler] = texUnit; - changed = GL_TRUE; - } - } - } - - if (changed) { - /* When a sampler's value changes it usually requires rewriting - * a GPU program's TEX instructions since there may not be a - * sampler->texture lookup table. We signal this with the - * ProgramStringNotify() callback. - */ - FLUSH_VERTICES(ctx, _NEW_TEXTURE | _NEW_PROGRAM); - _mesa_update_shader_textures_used(program); - /* Do we need to care about the return value here? - * This should not be the first time the driver was notified of - * this program. - */ - (void) ctx->Driver.ProgramStringNotify(ctx, program->Target, program); - } - } - else { - /* ordinary uniform variable */ - const GLboolean isUniformBool = is_boolean_type(param->DataType); - const GLenum basicType = base_uniform_type(type); - const GLint slots = (param->Size + 3) / 4; - const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); - GLsizei k, i; - - if ((GLint) param->Size > typeSize) { - /* an array */ - /* we'll ignore extra data below */ - } - else { - /* non-array: count must be at most one; count == 0 is handled by the loop below */ - if (count > 1) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUniform(uniform '%s' is not an array)", - param->Name); - return; - } - } - - /* loop over number of array elements */ - for (k = 0; k < count; k++) { - GLfloat *uniformVal; - - if (offset + k >= slots) { - /* Extra array data is ignored */ - break; - } - - /* uniformVal (the destination) is always float[4] */ - uniformVal = program->Parameters->ParameterValues[index + offset + k]; - - if (basicType == GL_INT) { - /* convert user's ints to floats */ - const GLint *iValues = ((const GLint *) values) + k * elems; - for (i = 0; i < elems; i++) { - uniformVal[i] = (GLfloat) iValues[i]; - } - } - else if (basicType == GL_UNSIGNED_INT) { - /* convert user's uints to floats */ - const GLuint *iValues = ((const GLuint *) values) + k * elems; - for (i = 0; i < elems; i++) { - uniformVal[i] = (GLfloat) iValues[i]; - } - } - else { - const GLfloat *fValues = ((const GLfloat *) values) + k * elems; - assert(basicType == GL_FLOAT); - for (i = 0; i < elems; i++) { - uniformVal[i] = fValues[i]; - } - } - - /* if the uniform is bool-valued, convert to 1.0 or 0.0 */ - if (isUniformBool) { - for (i = 0; i < elems; i++) { - uniformVal[i] = uniformVal[i] ? 1.0f : 0.0f; - } - } - } - } -} - - -/** - * Called via ctx->Driver.Uniform(). - */ -static void -_mesa_uniform(GLcontext *ctx, GLint location, GLsizei count, - const GLvoid *values, GLenum type) -{ - struct gl_shader_program *shProg = ctx->Shader.CurrentProgram; - struct gl_uniform *uniform; - GLint elems, offset; - - if (!shProg || !shProg->LinkStatus) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(program not linked)"); - return; - } - - if (location == -1) - return; /* The standard specifies this as a no-op */ - - if (location < -1) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(location=%d)", - location); - return; - } - - split_location_offset(&location, &offset); - - if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) { - _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(location=%d)", location); - return; - } - - if (count < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(count < 0)"); - return; - } - - elems = _mesa_sizeof_glsl_type(type); - - FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); - - uniform = &shProg->Uniforms->Uniforms[location]; - - if (ctx->Shader.Flags & GLSL_UNIFORMS) { - const GLenum basicType = base_uniform_type(type); - GLint i; - printf("Mesa: set program %u uniform %s (loc %d) to: ", - shProg->Name, uniform->Name, location); - if (basicType == GL_INT) { - const GLint *v = (const GLint *) values; - for (i = 0; i < count * elems; i++) { - printf("%d ", v[i]); - } - } - else if (basicType == GL_UNSIGNED_INT) { - const GLuint *v = (const GLuint *) values; - for (i = 0; i < count * elems; i++) { - printf("%u ", v[i]); - } - } - else { - const GLfloat *v = (const GLfloat *) values; - assert(basicType == GL_FLOAT); - for (i = 0; i < count * elems; i++) { - printf("%g ", v[i]); - } - } - printf("\n"); - } - - /* A uniform var may be used by both a vertex shader and a fragment - * shader. We may need to update one or both shader's uniform here: - */ - if (shProg->VertexProgram) { - /* convert uniform location to program parameter index */ - GLint index = uniform->VertPos; - if (index >= 0) { - set_program_uniform(ctx, &shProg->VertexProgram->Base, - index, offset, type, count, elems, values); - } - } - - if (shProg->FragmentProgram) { - /* convert uniform location to program parameter index */ - GLint index = uniform->FragPos; - if (index >= 0) { - set_program_uniform(ctx, &shProg->FragmentProgram->Base, - index, offset, type, count, elems, values); - } - } - - uniform->Initialized = GL_TRUE; -} - - -/** - * Set a matrix-valued program parameter. - */ -static void -set_program_uniform_matrix(GLcontext *ctx, struct gl_program *program, - GLuint index, GLuint offset, - GLuint count, GLuint rows, GLuint cols, - GLboolean transpose, const GLfloat *values) -{ - GLuint mat, row, col; - GLuint src = 0; - const struct gl_program_parameter * param = &program->Parameters->Parameters[index]; - const GLuint slots = (param->Size + 3) / 4; - const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); - GLint nr, nc; - - /* check that the number of rows, columns is correct */ - get_matrix_dims(param->DataType, &nr, &nc); - if (rows != nr || cols != nc) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUniformMatrix(matrix size mismatch)"); - return; - } - - if ((GLint) param->Size <= typeSize) { - /* non-array: count must be at most one; count == 0 is handled by the loop below */ - if (count > 1) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUniformMatrix(uniform is not an array)"); - return; - } - } - - /* - * Note: the _columns_ of a matrix are stored in program registers, not - * the rows. So, the loops below look a little funny. - * XXX could optimize this a bit... - */ - - /* loop over matrices */ - for (mat = 0; mat < count; mat++) { - - /* each matrix: */ - for (col = 0; col < cols; col++) { - GLfloat *v; - if (offset >= slots) { - /* Ignore writes beyond the end of (the used part of) an array */ - return; - } - v = program->Parameters->ParameterValues[index + offset]; - for (row = 0; row < rows; row++) { - if (transpose) { - v[row] = values[src + row * cols + col]; - } - else { - v[row] = values[src + col * rows + row]; - } - } - - offset++; - } - - src += rows * cols; /* next matrix */ - } -} - - -/** - * Called by ctx->Driver.UniformMatrix(). - * Note: cols=2, rows=4 ==> array[2] of vec4 - */ -static void -_mesa_uniform_matrix(GLcontext *ctx, GLint cols, GLint rows, - GLint location, GLsizei count, - GLboolean transpose, const GLfloat *values) -{ - struct gl_shader_program *shProg = ctx->Shader.CurrentProgram; - struct gl_uniform *uniform; - GLint offset; - - if (!shProg || !shProg->LinkStatus) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glUniformMatrix(program not linked)"); - return; - } - - if (location == -1) - return; /* The standard specifies this as a no-op */ - - if (location < -1) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glUniformMatrix(location)"); - return; - } - - split_location_offset(&location, &offset); - - if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) { - _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix(location)"); - return; - } - if (values == NULL) { - _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix"); - return; - } - - FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); - - uniform = &shProg->Uniforms->Uniforms[location]; - - if (shProg->VertexProgram) { - /* convert uniform location to program parameter index */ - GLint index = uniform->VertPos; - if (index >= 0) { - set_program_uniform_matrix(ctx, &shProg->VertexProgram->Base, - index, offset, - count, rows, cols, transpose, values); - } - } - - if (shProg->FragmentProgram) { - /* convert uniform location to program parameter index */ - GLint index = uniform->FragPos; - if (index >= 0) { - set_program_uniform_matrix(ctx, &shProg->FragmentProgram->Base, - index, offset, - count, rows, cols, transpose, values); - } - } - - uniform->Initialized = GL_TRUE; -} - - -/** * Validate a program's samplers. * Specifically, check that there aren't two samplers of different types * pointing to the same texture unit. @@ -2248,7 +1399,6 @@ _mesa_init_glsl_driver_functions(struct dd_function_table *driver) driver->DeleteShader = _mesa_delete_shader; driver->DetachShader = _mesa_detach_shader; driver->GetActiveAttrib = _mesa_get_active_attrib; - driver->GetActiveUniform = _mesa_get_active_uniform; driver->GetAttachedShaders = _mesa_get_attached_shaders; driver->GetAttribLocation = _mesa_get_attrib_location; driver->GetHandle = _mesa_get_handle; @@ -2257,15 +1407,12 @@ _mesa_init_glsl_driver_functions(struct dd_function_table *driver) driver->GetShaderiv = _mesa_get_shaderiv; driver->GetShaderInfoLog = _mesa_get_shader_info_log; driver->GetShaderSource = _mesa_get_shader_source; - driver->GetUniformfv = _mesa_get_uniformfv; - driver->GetUniformiv = _mesa_get_uniformiv; - driver->GetUniformLocation = _mesa_get_uniform_location; driver->IsProgram = _mesa_is_program; driver->IsShader = _mesa_is_shader; driver->LinkProgram = _mesa_link_program; driver->ShaderSource = _mesa_shader_source; - driver->Uniform = _mesa_uniform; - driver->UniformMatrix = _mesa_uniform_matrix; driver->UseProgram = _mesa_use_program; driver->ValidateProgram = _mesa_validate_program; + + _mesa_init_uniform_functions(driver); } diff --git a/src/mesa/shader/shader_api.h b/src/mesa/shader/shader_api.h index 597f0b8e75a..9743a23ce63 100644 --- a/src/mesa/shader/shader_api.h +++ b/src/mesa/shader/shader_api.h @@ -75,6 +75,10 @@ extern struct gl_shader_program * _mesa_lookup_shader_program(GLcontext *ctx, GLuint name); +extern struct gl_shader_program * +_mesa_lookup_shader_program_err(GLcontext *ctx, GLuint name, + const char *caller); + extern struct gl_shader * _mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type); diff --git a/src/mesa/shader/uniforms.c b/src/mesa/shader/uniforms.c new file mode 100644 index 00000000000..7aa6c934deb --- /dev/null +++ b/src/mesa/shader/uniforms.c @@ -0,0 +1,913 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2004-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009-2010 VMware, Inc. 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, 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 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 + * BRIAN PAUL 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. + */ + +/** + * \file uniforms.c + * Functions related to GLSL uniform variables. + * \author Brian Paul + */ + +/** + * XXX things to do: + * 1. Check that the right error code is generated for all _mesa_error() calls. + * 2. Insert FLUSH_VERTICES calls in various places + */ + + +#include "main/glheader.h" +#include "main/context.h" +#include "main/hash.h" +#include "shader/program.h" +#include "shader/prog_parameter.h" +#include "shader/prog_statevars.h" +#include "shader/prog_uniform.h" +#include "shader/shader_api.h" +#include "shader/slang/slang_compile.h" +#include "shader/slang/slang_link.h" +#include "main/dispatch.h" +#include "uniforms.h" + + + +static GLenum +base_uniform_type(GLenum type) +{ + switch (type) { +#if 0 /* not needed, for now */ + case GL_BOOL: + case GL_BOOL_VEC2: + case GL_BOOL_VEC3: + case GL_BOOL_VEC4: + return GL_BOOL; +#endif + case GL_FLOAT: + case GL_FLOAT_VEC2: + case GL_FLOAT_VEC3: + case GL_FLOAT_VEC4: + return GL_FLOAT; + case GL_UNSIGNED_INT: + case GL_UNSIGNED_INT_VEC2: + case GL_UNSIGNED_INT_VEC3: + case GL_UNSIGNED_INT_VEC4: + return GL_UNSIGNED_INT; + case GL_INT: + case GL_INT_VEC2: + case GL_INT_VEC3: + case GL_INT_VEC4: + return GL_INT; + default: + _mesa_problem(NULL, "Invalid type in base_uniform_type()"); + return GL_FLOAT; + } +} + + +static GLboolean +is_boolean_type(GLenum type) +{ + switch (type) { + case GL_BOOL: + case GL_BOOL_VEC2: + case GL_BOOL_VEC3: + case GL_BOOL_VEC4: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + +static GLboolean +is_sampler_type(GLenum type) +{ + switch (type) { + case GL_SAMPLER_1D: + case GL_SAMPLER_2D: + case GL_SAMPLER_3D: + case GL_SAMPLER_CUBE: + case GL_SAMPLER_1D_SHADOW: + case GL_SAMPLER_2D_SHADOW: + case GL_SAMPLER_2D_RECT_ARB: + case GL_SAMPLER_2D_RECT_SHADOW_ARB: + case GL_SAMPLER_1D_ARRAY_EXT: + case GL_SAMPLER_2D_ARRAY_EXT: + case GL_SAMPLER_1D_ARRAY_SHADOW_EXT: + case GL_SAMPLER_2D_ARRAY_SHADOW_EXT: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + +static struct gl_program_parameter * +get_uniform_parameter(const struct gl_shader_program *shProg, GLuint index) +{ + const struct gl_program *prog = NULL; + GLint progPos; + + progPos = shProg->Uniforms->Uniforms[index].VertPos; + if (progPos >= 0) { + prog = &shProg->VertexProgram->Base; + } + else { + progPos = shProg->Uniforms->Uniforms[index].FragPos; + if (progPos >= 0) { + prog = &shProg->FragmentProgram->Base; + } + } + + if (!prog || progPos < 0) + return NULL; /* should never happen */ + + return &prog->Parameters->Parameters[progPos]; +} + + +/** + * Called via ctx->Driver.GetActiveUniform(). + */ +static void +_mesa_get_active_uniform(GLcontext *ctx, GLuint program, GLuint index, + GLsizei maxLength, GLsizei *length, GLint *size, + GLenum *type, GLchar *nameOut) +{ + const struct gl_shader_program *shProg; + const struct gl_program *prog = NULL; + const struct gl_program_parameter *param; + GLint progPos; + + shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform"); + if (!shProg) + return; + + if (!shProg->Uniforms || index >= shProg->Uniforms->NumUniforms) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform(index)"); + return; + } + + progPos = shProg->Uniforms->Uniforms[index].VertPos; + if (progPos >= 0) { + prog = &shProg->VertexProgram->Base; + } + else { + progPos = shProg->Uniforms->Uniforms[index].FragPos; + if (progPos >= 0) { + prog = &shProg->FragmentProgram->Base; + } + } + + if (!prog || progPos < 0) + return; /* should never happen */ + + ASSERT(progPos < prog->Parameters->NumParameters); + param = &prog->Parameters->Parameters[progPos]; + + if (nameOut) { + _mesa_copy_string(nameOut, maxLength, length, param->Name); + } + + if (size) { + GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); + if ((GLint) param->Size > typeSize) { + /* This is an array. + * Array elements are placed on vector[4] boundaries so they're + * a multiple of four floats. We round typeSize up to next multiple + * of four to get the right size below. + */ + typeSize = (typeSize + 3) & ~3; + } + /* Note that the returned size is in units of the <type>, not bytes */ + *size = param->Size / typeSize; + } + + if (type) { + *type = param->DataType; + } +} + + + +static void +get_matrix_dims(GLenum type, GLint *rows, GLint *cols) +{ + switch (type) { + case GL_FLOAT_MAT2: + *rows = *cols = 2; + break; + case GL_FLOAT_MAT2x3: + *rows = 3; + *cols = 2; + break; + case GL_FLOAT_MAT2x4: + *rows = 4; + *cols = 2; + break; + case GL_FLOAT_MAT3: + *rows = 3; + *cols = 3; + break; + case GL_FLOAT_MAT3x2: + *rows = 2; + *cols = 3; + break; + case GL_FLOAT_MAT3x4: + *rows = 4; + *cols = 3; + break; + case GL_FLOAT_MAT4: + *rows = 4; + *cols = 4; + break; + case GL_FLOAT_MAT4x2: + *rows = 2; + *cols = 4; + break; + case GL_FLOAT_MAT4x3: + *rows = 3; + *cols = 4; + break; + default: + *rows = *cols = 0; + } +} + + +/** + * Determine the number of rows and columns occupied by a uniform + * according to its datatype. For non-matrix types (such as GL_FLOAT_VEC4), + * the number of rows = 1 and cols = number of elements in the vector. + */ +static void +get_uniform_rows_cols(const struct gl_program_parameter *p, + GLint *rows, GLint *cols) +{ + get_matrix_dims(p->DataType, rows, cols); + if (*rows == 0 && *cols == 0) { + /* not a matrix type, probably a float or vector */ + if (p->Size <= 4) { + *rows = 1; + *cols = p->Size; + } + else { + *rows = p->Size / 4 + 1; + if (p->Size % 4 == 0) + *cols = 4; + else + *cols = p->Size % 4; + } + } +} + + +/** + * Helper for get_uniform[fi]v() functions. + * Given a shader program name and uniform location, return a pointer + * to the shader program and return the program parameter position. + */ +static void +lookup_uniform_parameter(GLcontext *ctx, GLuint program, GLint location, + struct gl_program **progOut, GLint *paramPosOut) +{ + struct gl_shader_program *shProg + = _mesa_lookup_shader_program_err(ctx, program, "glGetUniform[if]v"); + struct gl_program *prog = NULL; + GLint progPos = -1; + + /* if shProg is NULL, we'll have already recorded an error */ + + if (shProg) { + if (!shProg->Uniforms || + location < 0 || + location >= (GLint) shProg->Uniforms->NumUniforms) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(location)"); + } + else { + /* OK, find the gl_program and program parameter location */ + progPos = shProg->Uniforms->Uniforms[location].VertPos; + if (progPos >= 0) { + prog = &shProg->VertexProgram->Base; + } + else { + progPos = shProg->Uniforms->Uniforms[location].FragPos; + if (progPos >= 0) { + prog = &shProg->FragmentProgram->Base; + } + } + } + } + + *progOut = prog; + *paramPosOut = progPos; +} + + +/** + * Called via ctx->Driver.GetUniformfv(). + */ +static void +_mesa_get_uniformfv(GLcontext *ctx, GLuint program, GLint location, + GLfloat *params) +{ + struct gl_program *prog; + GLint paramPos; + + lookup_uniform_parameter(ctx, program, location, &prog, ¶mPos); + + if (prog) { + const struct gl_program_parameter *p = + &prog->Parameters->Parameters[paramPos]; + GLint rows, cols, i, j, k; + + get_uniform_rows_cols(p, &rows, &cols); + + k = 0; + for (i = 0; i < rows; i++) { + for (j = 0; j < cols; j++ ) { + params[k++] = prog->Parameters->ParameterValues[paramPos+i][j]; + } + } + } +} + + +/** + * Called via ctx->Driver.GetUniformiv(). + * \sa _mesa_get_uniformfv, only difference is a cast. + */ +static void +_mesa_get_uniformiv(GLcontext *ctx, GLuint program, GLint location, + GLint *params) +{ + struct gl_program *prog; + GLint paramPos; + + lookup_uniform_parameter(ctx, program, location, &prog, ¶mPos); + + if (prog) { + const struct gl_program_parameter *p = + &prog->Parameters->Parameters[paramPos]; + GLint rows, cols, i, j, k; + + get_uniform_rows_cols(p, &rows, &cols); + + k = 0; + for (i = 0; i < rows; i++) { + for (j = 0; j < cols; j++ ) { + params[k++] = (GLint) prog->Parameters->ParameterValues[paramPos+i][j]; + } + } + } +} + + +/** + * The value returned by GetUniformLocation actually encodes two things: + * 1. the index into the prog->Uniforms[] array for the uniform + * 2. an offset in the prog->ParameterValues[] array for specifying array + * elements or structure fields. + * This function merges those two values. + */ +static void +merge_location_offset(GLint *location, GLint offset) +{ + *location = *location | (offset << 16); +} + + +/** + * Seperate the uniform location and parameter offset. See above. + */ +static void +split_location_offset(GLint *location, GLint *offset) +{ + *offset = (*location >> 16); + *location = *location & 0xffff; +} + + +/** + * Called via ctx->Driver.GetUniformLocation(). + * + * The return value will encode two values, the uniform location and an + * offset (used for arrays, structs). + */ +static GLint +_mesa_get_uniform_location(GLcontext *ctx, GLuint program, const GLchar *name) +{ + GLint offset = 0, location = -1; + + struct gl_shader_program *shProg = + _mesa_lookup_shader_program_err(ctx, program, "glGetUniformLocation"); + + if (!shProg) + return -1; + + if (shProg->LinkStatus == GL_FALSE) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(program)"); + return -1; + } + + /* XXX we should return -1 if the uniform was declared, but not + * actually used. + */ + + /* XXX we need to be able to parse uniform names for structs and arrays + * such as: + * mymatrix[1] + * mystruct.field1 + */ + + { + /* handle 1-dimension arrays here... */ + char *c = strchr(name, '['); + if (c) { + /* truncate name at [ */ + const GLint len = c - name; + GLchar *newName = malloc(len + 1); + if (!newName) + return -1; /* out of mem */ + memcpy(newName, name, len); + newName[len] = 0; + + location = _mesa_lookup_uniform(shProg->Uniforms, newName); + if (location >= 0) { + const GLint element = atoi(c + 1); + if (element > 0) { + /* get type of the uniform array element */ + struct gl_program_parameter *p; + p = get_uniform_parameter(shProg, location); + if (p) { + GLint rows, cols; + get_matrix_dims(p->DataType, &rows, &cols); + if (rows < 1) + rows = 1; + offset = element * rows; + } + } + } + + free(newName); + } + } + + if (location < 0) { + location = _mesa_lookup_uniform(shProg->Uniforms, name); + } + + if (location >= 0) { + merge_location_offset(&location, offset); + } + + return location; +} + + +/** + * Check if the type given by userType is allowed to set a uniform of the + * target type. Generally, equivalence is required, but setting Boolean + * uniforms can be done with glUniformiv or glUniformfv. + */ +static GLboolean +compatible_types(GLenum userType, GLenum targetType) +{ + if (userType == targetType) + return GL_TRUE; + + if (targetType == GL_BOOL && (userType == GL_FLOAT || + userType == GL_UNSIGNED_INT || + userType == GL_INT)) + return GL_TRUE; + + if (targetType == GL_BOOL_VEC2 && (userType == GL_FLOAT_VEC2 || + userType == GL_UNSIGNED_INT_VEC2 || + userType == GL_INT_VEC2)) + return GL_TRUE; + + if (targetType == GL_BOOL_VEC3 && (userType == GL_FLOAT_VEC3 || + userType == GL_UNSIGNED_INT_VEC3 || + userType == GL_INT_VEC3)) + return GL_TRUE; + + if (targetType == GL_BOOL_VEC4 && (userType == GL_FLOAT_VEC4 || + userType == GL_UNSIGNED_INT_VEC4 || + userType == GL_INT_VEC4)) + return GL_TRUE; + + if (is_sampler_type(targetType) && userType == GL_INT) + return GL_TRUE; + + return GL_FALSE; +} + + +/** + * Set the value of a program's uniform variable. + * \param program the program whose uniform to update + * \param index the index of the program parameter for the uniform + * \param offset additional parameter slot offset (for arrays) + * \param type the incoming datatype of 'values' + * \param count the number of uniforms to set + * \param elems number of elements per uniform (1, 2, 3 or 4) + * \param values the new values, of datatype 'type' + */ +static void +set_program_uniform(GLcontext *ctx, struct gl_program *program, + GLint index, GLint offset, + GLenum type, GLsizei count, GLint elems, + const void *values) +{ + const struct gl_program_parameter *param = + &program->Parameters->Parameters[index]; + + assert(offset >= 0); + assert(elems >= 1); + assert(elems <= 4); + + if (!compatible_types(type, param->DataType)) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(type mismatch)"); + return; + } + + if (index + offset > (GLint) program->Parameters->Size) { + /* out of bounds! */ + return; + } + + if (param->Type == PROGRAM_SAMPLER) { + /* This controls which texture unit which is used by a sampler */ + GLboolean changed = GL_FALSE; + GLint i; + + /* this should have been caught by the compatible_types() check */ + ASSERT(type == GL_INT); + + /* loop over number of samplers to change */ + for (i = 0; i < count; i++) { + GLuint sampler = + (GLuint) program->Parameters->ParameterValues[index + offset + i][0]; + GLuint texUnit = ((GLuint *) values)[i]; + + /* check that the sampler (tex unit index) is legal */ + if (texUnit >= ctx->Const.MaxTextureImageUnits) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glUniform1(invalid sampler/tex unit index for '%s')", + param->Name); + return; + } + + /* This maps a sampler to a texture unit: */ + if (sampler < MAX_SAMPLERS) { +#if 0 + printf("Set program %p sampler %d '%s' to unit %u\n", + program, sampler, param->Name, texUnit); +#endif + if (program->SamplerUnits[sampler] != texUnit) { + program->SamplerUnits[sampler] = texUnit; + changed = GL_TRUE; + } + } + } + + if (changed) { + /* When a sampler's value changes it usually requires rewriting + * a GPU program's TEX instructions since there may not be a + * sampler->texture lookup table. We signal this with the + * ProgramStringNotify() callback. + */ + FLUSH_VERTICES(ctx, _NEW_TEXTURE | _NEW_PROGRAM); + _mesa_update_shader_textures_used(program); + /* Do we need to care about the return value here? + * This should not be the first time the driver was notified of + * this program. + */ + (void) ctx->Driver.ProgramStringNotify(ctx, program->Target, program); + } + } + else { + /* ordinary uniform variable */ + const GLboolean isUniformBool = is_boolean_type(param->DataType); + const GLenum basicType = base_uniform_type(type); + const GLint slots = (param->Size + 3) / 4; + const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); + GLsizei k, i; + + if ((GLint) param->Size > typeSize) { + /* an array */ + /* we'll ignore extra data below */ + } + else { + /* non-array: count must be at most one; count == 0 is handled by the loop below */ + if (count > 1) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUniform(uniform '%s' is not an array)", + param->Name); + return; + } + } + + /* loop over number of array elements */ + for (k = 0; k < count; k++) { + GLfloat *uniformVal; + + if (offset + k >= slots) { + /* Extra array data is ignored */ + break; + } + + /* uniformVal (the destination) is always float[4] */ + uniformVal = program->Parameters->ParameterValues[index + offset + k]; + + if (basicType == GL_INT) { + /* convert user's ints to floats */ + const GLint *iValues = ((const GLint *) values) + k * elems; + for (i = 0; i < elems; i++) { + uniformVal[i] = (GLfloat) iValues[i]; + } + } + else if (basicType == GL_UNSIGNED_INT) { + /* convert user's uints to floats */ + const GLuint *iValues = ((const GLuint *) values) + k * elems; + for (i = 0; i < elems; i++) { + uniformVal[i] = (GLfloat) iValues[i]; + } + } + else { + const GLfloat *fValues = ((const GLfloat *) values) + k * elems; + assert(basicType == GL_FLOAT); + for (i = 0; i < elems; i++) { + uniformVal[i] = fValues[i]; + } + } + + /* if the uniform is bool-valued, convert to 1.0 or 0.0 */ + if (isUniformBool) { + for (i = 0; i < elems; i++) { + uniformVal[i] = uniformVal[i] ? 1.0f : 0.0f; + } + } + } + } +} + + +/** + * Called via ctx->Driver.Uniform(). + */ +static void +_mesa_uniform(GLcontext *ctx, GLint location, GLsizei count, + const GLvoid *values, GLenum type) +{ + struct gl_shader_program *shProg = ctx->Shader.CurrentProgram; + struct gl_uniform *uniform; + GLint elems, offset; + + if (!shProg || !shProg->LinkStatus) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(program not linked)"); + return; + } + + if (location == -1) + return; /* The standard specifies this as a no-op */ + + if (location < -1) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(location=%d)", + location); + return; + } + + split_location_offset(&location, &offset); + + if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) { + _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(location=%d)", location); + return; + } + + if (count < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(count < 0)"); + return; + } + + elems = _mesa_sizeof_glsl_type(type); + + FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); + + uniform = &shProg->Uniforms->Uniforms[location]; + + if (ctx->Shader.Flags & GLSL_UNIFORMS) { + const GLenum basicType = base_uniform_type(type); + GLint i; + printf("Mesa: set program %u uniform %s (loc %d) to: ", + shProg->Name, uniform->Name, location); + if (basicType == GL_INT) { + const GLint *v = (const GLint *) values; + for (i = 0; i < count * elems; i++) { + printf("%d ", v[i]); + } + } + else if (basicType == GL_UNSIGNED_INT) { + const GLuint *v = (const GLuint *) values; + for (i = 0; i < count * elems; i++) { + printf("%u ", v[i]); + } + } + else { + const GLfloat *v = (const GLfloat *) values; + assert(basicType == GL_FLOAT); + for (i = 0; i < count * elems; i++) { + printf("%g ", v[i]); + } + } + printf("\n"); + } + + /* A uniform var may be used by both a vertex shader and a fragment + * shader. We may need to update one or both shader's uniform here: + */ + if (shProg->VertexProgram) { + /* convert uniform location to program parameter index */ + GLint index = uniform->VertPos; + if (index >= 0) { + set_program_uniform(ctx, &shProg->VertexProgram->Base, + index, offset, type, count, elems, values); + } + } + + if (shProg->FragmentProgram) { + /* convert uniform location to program parameter index */ + GLint index = uniform->FragPos; + if (index >= 0) { + set_program_uniform(ctx, &shProg->FragmentProgram->Base, + index, offset, type, count, elems, values); + } + } + + uniform->Initialized = GL_TRUE; +} + + +/** + * Set a matrix-valued program parameter. + */ +static void +set_program_uniform_matrix(GLcontext *ctx, struct gl_program *program, + GLuint index, GLuint offset, + GLuint count, GLuint rows, GLuint cols, + GLboolean transpose, const GLfloat *values) +{ + GLuint mat, row, col; + GLuint src = 0; + const struct gl_program_parameter * param = &program->Parameters->Parameters[index]; + const GLuint slots = (param->Size + 3) / 4; + const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType); + GLint nr, nc; + + /* check that the number of rows, columns is correct */ + get_matrix_dims(param->DataType, &nr, &nc); + if (rows != nr || cols != nc) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUniformMatrix(matrix size mismatch)"); + return; + } + + if ((GLint) param->Size <= typeSize) { + /* non-array: count must be at most one; count == 0 is handled by the loop below */ + if (count > 1) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUniformMatrix(uniform is not an array)"); + return; + } + } + + /* + * Note: the _columns_ of a matrix are stored in program registers, not + * the rows. So, the loops below look a little funny. + * XXX could optimize this a bit... + */ + + /* loop over matrices */ + for (mat = 0; mat < count; mat++) { + + /* each matrix: */ + for (col = 0; col < cols; col++) { + GLfloat *v; + if (offset >= slots) { + /* Ignore writes beyond the end of (the used part of) an array */ + return; + } + v = program->Parameters->ParameterValues[index + offset]; + for (row = 0; row < rows; row++) { + if (transpose) { + v[row] = values[src + row * cols + col]; + } + else { + v[row] = values[src + col * rows + row]; + } + } + + offset++; + } + + src += rows * cols; /* next matrix */ + } +} + + +/** + * Called by ctx->Driver.UniformMatrix(). + * Note: cols=2, rows=4 ==> array[2] of vec4 + */ +static void +_mesa_uniform_matrix(GLcontext *ctx, GLint cols, GLint rows, + GLint location, GLsizei count, + GLboolean transpose, const GLfloat *values) +{ + struct gl_shader_program *shProg = ctx->Shader.CurrentProgram; + struct gl_uniform *uniform; + GLint offset; + + if (!shProg || !shProg->LinkStatus) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUniformMatrix(program not linked)"); + return; + } + + if (location == -1) + return; /* The standard specifies this as a no-op */ + + if (location < -1) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glUniformMatrix(location)"); + return; + } + + split_location_offset(&location, &offset); + + if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) { + _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix(location)"); + return; + } + if (values == NULL) { + _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix"); + return; + } + + FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); + + uniform = &shProg->Uniforms->Uniforms[location]; + + if (shProg->VertexProgram) { + /* convert uniform location to program parameter index */ + GLint index = uniform->VertPos; + if (index >= 0) { + set_program_uniform_matrix(ctx, &shProg->VertexProgram->Base, + index, offset, + count, rows, cols, transpose, values); + } + } + + if (shProg->FragmentProgram) { + /* convert uniform location to program parameter index */ + GLint index = uniform->FragPos; + if (index >= 0) { + set_program_uniform_matrix(ctx, &shProg->FragmentProgram->Base, + index, offset, + count, rows, cols, transpose, values); + } + } + + uniform->Initialized = GL_TRUE; +} + + + +void +_mesa_init_uniform_functions(struct dd_function_table *driver) +{ + driver->GetActiveUniform = _mesa_get_active_uniform; + driver->GetUniformfv = _mesa_get_uniformfv; + driver->GetUniformiv = _mesa_get_uniformiv; + driver->GetUniformLocation = _mesa_get_uniform_location; + driver->Uniform = _mesa_uniform; + driver->UniformMatrix = _mesa_uniform_matrix; +} diff --git a/src/mesa/shader/uniforms.h b/src/mesa/shader/uniforms.h new file mode 100644 index 00000000000..52984dedadb --- /dev/null +++ b/src/mesa/shader/uniforms.h @@ -0,0 +1,33 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2010 VMware, Inc. 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, 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 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 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. + */ + + +#ifndef UNIFORMS_H +#define UNIFORMS_H + + +extern void +_mesa_init_uniform_functions(struct dd_function_table *driver); + + +#endif /* UNIFORMS_H */ diff --git a/src/mesa/sources.mak b/src/mesa/sources.mak index c9d8620e35f..ddd63cea0b4 100644 --- a/src/mesa/sources.mak +++ b/src/mesa/sources.mak @@ -247,7 +247,8 @@ SHADER_SOURCES = \ shader/prog_uniform.c \ shader/programopt.c \ shader/symbol_table.c \ - shader/shader_api.c + shader/shader_api.c \ + shader/uniforms.c SLANG_SOURCES = \ shader/slang/slang_builtin.c \ |