diff options
Diffstat (limited to 'mesalib/src/mesa/main/uniforms.c')
| -rw-r--r-- | mesalib/src/mesa/main/uniforms.c | 1014 |
1 files changed, 50 insertions, 964 deletions
diff --git a/mesalib/src/mesa/main/uniforms.c b/mesalib/src/mesa/main/uniforms.c index 68e44b272..685c0f13f 100644 --- a/mesalib/src/mesa/main/uniforms.c +++ b/mesalib/src/mesa/main/uniforms.c @@ -35,522 +35,14 @@ * 2. Insert FLUSH_VERTICES calls in various places */ - #include "main/glheader.h" #include "main/context.h" #include "main/dispatch.h" -#include "main/image.h" -#include "main/mfeatures.h" -#include "main/mtypes.h" #include "main/shaderapi.h" #include "main/shaderobj.h" #include "main/uniforms.h" -#include "program/prog_parameter.h" -#include "program/prog_statevars.h" -#include "program/prog_uniform.h" -#include "program/prog_instruction.h" - - -static GLenum -base_uniform_type(GLenum type) -{ - switch (type) { - case GL_BOOL: - case GL_BOOL_VEC2: - case GL_BOOL_VEC3: - case GL_BOOL_VEC4: - return GL_BOOL; - case GL_FLOAT: - case GL_FLOAT_VEC2: - case GL_FLOAT_VEC3: - case GL_FLOAT_VEC4: - case GL_FLOAT_MAT2: - case GL_FLOAT_MAT2x3: - case GL_FLOAT_MAT2x4: - case GL_FLOAT_MAT3x2: - case GL_FLOAT_MAT3: - case GL_FLOAT_MAT3x4: - case GL_FLOAT_MAT4x2: - case GL_FLOAT_MAT4x3: - case GL_FLOAT_MAT4: - 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_INT_SAMPLER_1D: - case GL_UNSIGNED_INT_SAMPLER_1D: - case GL_SAMPLER_2D: - case GL_INT_SAMPLER_2D: - case GL_UNSIGNED_INT_SAMPLER_2D: - case GL_SAMPLER_3D: - case GL_INT_SAMPLER_3D: - case GL_UNSIGNED_INT_SAMPLER_3D: - case GL_SAMPLER_CUBE: - case GL_INT_SAMPLER_CUBE: - case GL_UNSIGNED_INT_SAMPLER_CUBE: - case GL_SAMPLER_1D_SHADOW: - case GL_SAMPLER_2D_SHADOW: - case GL_SAMPLER_CUBE_SHADOW: - case GL_SAMPLER_2D_RECT_ARB: - case GL_INT_SAMPLER_2D_RECT: - case GL_UNSIGNED_INT_SAMPLER_2D_RECT: - case GL_SAMPLER_2D_RECT_SHADOW_ARB: - case GL_SAMPLER_1D_ARRAY_EXT: - case GL_INT_SAMPLER_1D_ARRAY: - case GL_UNSIGNED_INT_SAMPLER_1D_ARRAY: - case GL_SAMPLER_2D_ARRAY_EXT: - case GL_INT_SAMPLER_2D_ARRAY: - case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY: - case GL_SAMPLER_1D_ARRAY_SHADOW_EXT: - case GL_SAMPLER_2D_ARRAY_SHADOW_EXT: - case GL_SAMPLER_CUBE_MAP_ARRAY: - case GL_SAMPLER_CUBE_MAP_ARRAY_SHADOW: - case GL_SAMPLER_BUFFER: - case GL_INT_SAMPLER_BUFFER: - case GL_UNSIGNED_INT_SAMPLER_BUFFER: - case GL_SAMPLER_2D_MULTISAMPLE: - case GL_INT_SAMPLER_2D_MULTISAMPLE: - case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE: - case GL_SAMPLER_2D_MULTISAMPLE_ARRAY: - case GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: - case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: - case GL_SAMPLER_EXTERNAL_OES: - return GL_TRUE; - default: - return GL_FALSE; - } -} - - -/** - * Given a uniform index, return the vertex/geometry/fragment program - * that has that parameter, plus the position of the parameter in the - * parameter/constant buffer. - * \param shProg the shader program - * \param index the uniform index in [0, NumUniforms-1] - * \param progOut returns containing program - * \param posOut returns position of the uniform in the param/const buffer - * \return GL_TRUE for success, GL_FALSE for invalid index - */ -static GLboolean -find_uniform_parameter_pos(struct gl_shader_program *shProg, GLint index, - struct gl_program **progOut, GLint *posOut) -{ - struct gl_program *prog = NULL; - GLint pos; - - if (!shProg->Uniforms || - index < 0 || - index >= (GLint) shProg->Uniforms->NumUniforms) { - return GL_FALSE; - } - - pos = shProg->Uniforms->Uniforms[index].VertPos; - if (pos >= 0) { - prog = shProg->_LinkedShaders[MESA_SHADER_VERTEX]->Program; - } - else { - pos = shProg->Uniforms->Uniforms[index].FragPos; - if (pos >= 0) { - prog = shProg->_LinkedShaders[MESA_SHADER_FRAGMENT]->Program; - } - else { - pos = shProg->Uniforms->Uniforms[index].GeomPos; - if (pos >= 0) { - prog = shProg->_LinkedShaders[MESA_SHADER_GEOMETRY]->Program; - } - } - } - - if (!prog || pos < 0) - return GL_FALSE; /* should really never happen */ - - *progOut = prog; - *posOut = pos; - - return GL_TRUE; -} - - -/** - * Return pointer to a gl_program_parameter which corresponds to a uniform. - * \param shProg the shader program - * \param index the uniform index in [0, NumUniforms-1] - * \return gl_program_parameter point or NULL if index is invalid - */ -const struct gl_program_parameter * -get_uniform_parameter(struct gl_shader_program *shProg, GLint index) -{ - struct gl_program *prog; - GLint progPos; - - if (find_uniform_parameter_pos(shProg, index, &prog, &progPos)) - return &prog->Parameters->Parameters[progPos]; - else - return NULL; -} - - -static unsigned -get_vector_elements(GLenum type) -{ - switch (type) { - case GL_FLOAT: - case GL_INT: - case GL_BOOL: - case GL_UNSIGNED_INT: - default: /* Catch all the various sampler types. */ - return 1; - - case GL_FLOAT_VEC2: - case GL_INT_VEC2: - case GL_BOOL_VEC2: - case GL_UNSIGNED_INT_VEC2: - return 2; - - case GL_FLOAT_VEC3: - case GL_INT_VEC3: - case GL_BOOL_VEC3: - case GL_UNSIGNED_INT_VEC3: - return 3; - - case GL_FLOAT_VEC4: - case GL_INT_VEC4: - case GL_BOOL_VEC4: - case GL_UNSIGNED_INT_VEC4: - return 4; - } -} - -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 */ - *rows = 1; - *cols = get_vector_elements(p->DataType); - } -} - - -/** - * GLSL uniform arrays and structs require special handling. - * - * The GL_ARB_shader_objects spec says that if you use - * glGetUniformLocation to get the location of an array, you CANNOT - * access other elements of the array by adding an offset to the - * returned location. For example, you must call - * glGetUniformLocation("foo[16]") if you want to set the 16th element - * of the array with glUniform(). - * - * HOWEVER, some other OpenGL drivers allow accessing array elements - * by adding an offset to the returned array location. And some apps - * seem to depend on that behaviour. - * - * Mesa's gl_uniform_list doesn't directly support this since each - * entry in the list describes one uniform variable, not one uniform - * element. We could insert dummy entries in the list for each array - * element after [0] but that causes complications elsewhere. - * - * We solve this problem by encoding two values in the location that's - * returned by glGetUniformLocation(): - * a) index into gl_uniform_list::Uniforms[] for the uniform - * b) an array/field offset (0 for simple types) - * - * These two values are encoded in the high and low halves of a GLint. - * By putting the uniform number in the high part and the offset in the - * low part, we can support the unofficial ability to index into arrays - * by adding offsets to the location value. - */ -static void -merge_location_offset(GLint *location, GLint offset) -{ - *location = (*location << 16) | offset; -} - - -/** - * Separate the uniform location and parameter offset. See above. - */ -static void -split_location_offset(GLint *location, GLint *offset) -{ - *offset = *location & 0xffff; - *location = *location >> 16; -} - - - -/** - * Called via glGetUniform[fiui]v() to get the current value of a uniform. - */ -static void -get_uniform(struct gl_context *ctx, GLuint program, GLint location, - GLsizei bufSize, GLenum returnType, GLvoid *paramsOut) -{ - struct gl_shader_program *shProg = - _mesa_lookup_shader_program_err(ctx, program, "glGetUniformfv"); - struct gl_program *prog; - GLint paramPos, offset; - - if (!shProg) - return; - - split_location_offset(&location, &offset); - - if (!find_uniform_parameter_pos(shProg, location, &prog, ¶mPos)) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(location)"); - } - else { - const struct gl_program_parameter *p = - &prog->Parameters->Parameters[paramPos]; - gl_constant_value (*values)[4]; - GLint rows, cols, i, j, k; - GLsizei numBytes; - GLenum storage_type; - - values = prog->Parameters->ParameterValues + paramPos + offset; - - get_uniform_rows_cols(p, &rows, &cols); - - numBytes = rows * cols * _mesa_sizeof_type(returnType); - if (bufSize < numBytes) { - _mesa_error( ctx, GL_INVALID_OPERATION, - "glGetnUniformfvARB(out of bounds: bufSize is %d," - " but %d bytes are required)", bufSize, numBytes ); - return; - } - - if (ctx->Const.NativeIntegers) { - storage_type = base_uniform_type(p->DataType); - } else { - storage_type = GL_FLOAT; - } - - k = 0; - for (i = 0; i < rows; i++) { - for (j = 0; j < cols; j++ ) { - void *out = (char *)paramsOut + 4 * k; - - switch (returnType) { - case GL_FLOAT: - switch (storage_type) { - case GL_FLOAT: - *(float *)out = values[i][j].f; - break; - case GL_INT: - case GL_BOOL: /* boolean is just an integer 1 or 0. */ - *(float *)out = values[i][j].i; - break; - case GL_UNSIGNED_INT: - *(float *)out = values[i][j].u; - break; - } - break; - - case GL_INT: - case GL_UNSIGNED_INT: - switch (storage_type) { - case GL_FLOAT: - /* While the GL 3.2 core spec doesn't explicitly - * state how conversion of float uniforms to integer - * values works, in section 6.2 "State Tables" on - * page 267 it says: - * - * "Unless otherwise specified, when floating - * point state is returned as integer values or - * integer state is returned as floating-point - * values it is converted in the fashion - * described in section 6.1.2" - * - * That section, on page 248, says: - * - * "If GetIntegerv or GetInteger64v are called, - * a floating-point value is rounded to the - * nearest integer..." - */ - *(int *)out = IROUND(values[i][j].f); - break; - - case GL_INT: - case GL_UNSIGNED_INT: - case GL_BOOL: - /* type conversions for these to int/uint are just - * copying the data. - */ - *(int *)out = values[i][j].i; - break; - break; - } - break; - } - - k++; - } - } - } -} - - -/** - * Called via glGetUniformLocation(). - * - * The return value will encode two values, the uniform location and an - * offset (used for arrays, structs). - */ -GLint -_mesa_get_uniform_location(struct gl_context *ctx, - struct gl_shader_program *shProg, - const GLchar *name) -{ - GLint offset = 0, location = -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 */ - const struct gl_program_parameter *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; -} - - +#include "ir_uniform.h" +#include "glsl_types.h" /** * Update the vertex/fragment program's TexturesUsed array. @@ -585,470 +77,53 @@ _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(struct gl_context *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].f; - GLuint texUnit = ((GLuint *) values)[i]; - - /* check that the sampler (tex unit index) is legal */ - if (texUnit >= ctx->Const.MaxCombinedTextureImageUnits) { - _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++) { - gl_constant_value *uniformVal; - - if (offset + k >= slots) { - /* Extra array data is ignored */ - break; - } - - /* uniformVal (the destination) is always gl_constant_value[4] */ - uniformVal = program->Parameters->ParameterValues[index + offset + k]; - - if (basicType == GL_INT) { - const GLint *iValues = ((const GLint *) values) + k * elems; - for (i = 0; i < elems; i++) { - if (!ctx->Const.NativeIntegers) - uniformVal[i].f = (GLfloat) iValues[i]; - else - uniformVal[i].i = iValues[i]; - } - } - else if (basicType == GL_UNSIGNED_INT) { - const GLuint *iValues = ((const GLuint *) values) + k * elems; - for (i = 0; i < elems; i++) { - if (!ctx->Const.NativeIntegers) - uniformVal[i].f = (GLfloat)(GLuint) iValues[i]; - else - uniformVal[i].u = iValues[i]; - } - } - else { - const GLfloat *fValues = ((const GLfloat *) values) + k * elems; - assert(basicType == GL_FLOAT); - for (i = 0; i < elems; i++) { - uniformVal[i].f = fValues[i]; - } - } - - /* if the uniform is bool-valued, convert to 1 or 0 */ - if (isUniformBool) { - for (i = 0; i < elems; i++) { - if (basicType == GL_FLOAT) - uniformVal[i].b = uniformVal[i].f != 0.0f ? 1 : 0; - else - uniformVal[i].b = uniformVal[i].u ? 1 : 0; - - if (ctx->Const.NativeIntegers) - uniformVal[i].u = - uniformVal[i].b ? ctx->Const.UniformBooleanTrue : 0; - else - uniformVal[i].f = uniformVal[i].b ? 1.0f : 0.0f; - } - } - } - } -} - - -/** - * Called via glUniform*() functions. + * Connect a piece of driver storage with a part of a uniform + * + * \param uni The uniform with which the storage will be associated + * \param element_stride Byte-stride between array elements. + * \sa gl_uniform_driver_storage::element_stride. + * \param vector_stride Byte-stride between vectors (in a matrix). + * \sa gl_uniform_driver_storage::vector_stride. + * \param format Conversion from native format to driver format + * required by the driver. + * \param data Location to dump the data. */ void -_mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, - GLint location, GLsizei count, - const GLvoid *values, GLenum type) -{ - struct gl_uniform *uniform; - GLint elems, offset; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - 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->_LinkedShaders[MESA_SHADER_VERTEX]) { - /* convert uniform location to program parameter index */ - GLint index = uniform->VertPos; - if (index >= 0) { - set_program_uniform(ctx, - shProg->_LinkedShaders[MESA_SHADER_VERTEX]->Program, - index, offset, type, count, elems, values); - } - } - - if (shProg->_LinkedShaders[MESA_SHADER_FRAGMENT]) { - /* convert uniform location to program parameter index */ - GLint index = uniform->FragPos; - if (index >= 0) { - set_program_uniform(ctx, - shProg->_LinkedShaders[MESA_SHADER_FRAGMENT]->Program, - index, offset, type, count, elems, values); - } - } - - if (shProg->_LinkedShaders[MESA_SHADER_GEOMETRY]) { - /* convert uniform location to program parameter index */ - GLint index = uniform->GeomPos; - if (index >= 0) { - set_program_uniform(ctx, - shProg->_LinkedShaders[MESA_SHADER_GEOMETRY]->Program, - index, offset, type, count, elems, values); - } - } - - uniform->Initialized = GL_TRUE; -} - - -/** - * Set a matrix-valued program parameter. - */ -static void -set_program_uniform_matrix(struct gl_context *ctx, struct gl_program *program, - GLuint index, GLuint offset, - GLuint count, GLuint rows, GLuint cols, - GLboolean transpose, const GLfloat *values) +_mesa_uniform_attach_driver_storage(struct gl_uniform_storage *uni, + unsigned element_stride, + unsigned vector_stride, + enum gl_uniform_driver_format format, + void *data) { - 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... - */ + uni->driver_storage = (struct gl_uniform_driver_storage*) + realloc(uni->driver_storage, + sizeof(struct gl_uniform_driver_storage) + * (uni->num_driver_storage + 1)); - /* 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 = (GLfloat *) 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++; - } + uni->driver_storage[uni->num_driver_storage].element_stride = element_stride; + uni->driver_storage[uni->num_driver_storage].vector_stride = vector_stride; + uni->driver_storage[uni->num_driver_storage].format = (uint8_t) format; + uni->driver_storage[uni->num_driver_storage].data = data; - src += rows * cols; /* next matrix */ - } + uni->num_driver_storage++; } - /** - * Called by glUniformMatrix*() functions. - * Note: cols=2, rows=4 ==> array[2] of vec4 + * Sever all connections with all pieces of driver storage for all uniforms + * + * \warning + * This function does \b not release any of the \c data pointers + * previously passed in to \c _mesa_uniform_attach_driver_stoarge. */ void -_mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg, - GLint cols, GLint rows, - GLint location, GLsizei count, - GLboolean transpose, const GLfloat *values) +_mesa_uniform_detach_all_driver_storage(struct gl_uniform_storage *uni) { - struct gl_uniform *uniform; - GLint offset; - - ASSERT_OUTSIDE_BEGIN_END(ctx); - - 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->_LinkedShaders[MESA_SHADER_VERTEX]) { - /* convert uniform location to program parameter index */ - GLint index = uniform->VertPos; - if (index >= 0) { - set_program_uniform_matrix(ctx, - shProg->_LinkedShaders[MESA_SHADER_VERTEX]->Program, - index, offset, - count, rows, cols, transpose, values); - } - } - - if (shProg->_LinkedShaders[MESA_SHADER_FRAGMENT]) { - /* convert uniform location to program parameter index */ - GLint index = uniform->FragPos; - if (index >= 0) { - set_program_uniform_matrix(ctx, - shProg->_LinkedShaders[MESA_SHADER_FRAGMENT]->Program, - index, offset, - count, rows, cols, transpose, values); - } - } - - if (shProg->_LinkedShaders[MESA_SHADER_GEOMETRY]) { - /* convert uniform location to program parameter index */ - GLint index = uniform->GeomPos; - if (index >= 0) { - set_program_uniform_matrix(ctx, - shProg->_LinkedShaders[MESA_SHADER_GEOMETRY]->Program, - index, offset, - count, rows, cols, transpose, values); - } - } - - uniform->Initialized = GL_TRUE; + free(uni->driver_storage); + uni->driver_storage = NULL; + uni->num_driver_storage = 0; } - void GLAPIENTRY _mesa_Uniform1fARB(GLint location, GLfloat v0) { @@ -1349,7 +424,7 @@ _mesa_GetnUniformfvARB(GLhandleARB program, GLint location, GLsizei bufSize, GLfloat *params) { GET_CURRENT_CONTEXT(ctx); - get_uniform(ctx, program, location, bufSize, GL_FLOAT, params); + _mesa_get_uniform(ctx, program, location, bufSize, GLSL_TYPE_FLOAT, params); } void GLAPIENTRY @@ -1364,7 +439,7 @@ _mesa_GetnUniformivARB(GLhandleARB program, GLint location, GLsizei bufSize, GLint *params) { GET_CURRENT_CONTEXT(ctx); - get_uniform(ctx, program, location, bufSize, GL_INT, params); + _mesa_get_uniform(ctx, program, location, bufSize, GLSL_TYPE_INT, params); } void GLAPIENTRY @@ -1380,7 +455,7 @@ _mesa_GetnUniformuivARB(GLhandleARB program, GLint location, GLsizei bufSize, GLuint *params) { GET_CURRENT_CONTEXT(ctx); - get_uniform(ctx, program, location, bufSize, GL_UNSIGNED_INT, params); + _mesa_get_uniform(ctx, program, location, bufSize, GLSL_TYPE_UINT, params); } void GLAPIENTRY @@ -1403,7 +478,7 @@ _mesa_GetnUniformdvARB(GLhandleARB program, GLint location, (void) params; /* - get_uniform(ctx, program, location, bufSize, GL_DOUBLE, params); + _mesa_get_uniform(ctx, program, location, bufSize, GL_DOUBLE, params); */ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformdvARB" "(GL_ARB_gpu_shader_fp64 not implemented)"); @@ -1428,6 +503,17 @@ _mesa_GetUniformLocationARB(GLhandleARB programObj, const GLcharARB *name) if (!shProg) return -1; + /* Page 80 (page 94 of the PDF) of the OpenGL 2.1 spec says: + * + * "If program has not been successfully linked, the error + * INVALID_OPERATION is generated." + */ + if (shProg->LinkStatus == GL_FALSE) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetUniformLocation(program not linked)"); + return -1; + } + return _mesa_get_uniform_location(ctx, shProg, name); } |