| 0,0 → 1,846 |
|---|
| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 2004-2008 Brian Paul All Rights Reserved. |
| * Copyright (C) 2009-2010 VMware, Inc. All Rights Reserved. |
| * Copyright © 2010 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| /** |
| * \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/dispatch.h" |
| #include "main/shaderapi.h" |
| #include "main/shaderobj.h" |
| #include "main/uniforms.h" |
| #include "main/enums.h" |
| #include "ir_uniform.h" |
| #include "glsl_types.h" |
| #include "program/program.h" |
| |
| /** |
| * Update the vertex/fragment program's TexturesUsed array. |
| * |
| * This needs to be called after glUniform(set sampler var) is called. |
| * A call to glUniform(samplerVar, value) causes a sampler to point to a |
| * particular texture unit. We know the sampler's texture target |
| * (1D/2D/3D/etc) from compile time but the sampler's texture unit is |
| * set by glUniform() calls. |
| * |
| * So, scan the program->SamplerUnits[] and program->SamplerTargets[] |
| * information to update the prog->TexturesUsed[] values. |
| * Each value of TexturesUsed[unit] is one of zero, TEXTURE_1D_INDEX, |
| * TEXTURE_2D_INDEX, TEXTURE_3D_INDEX, etc. |
| * We'll use that info for state validation before rendering. |
| */ |
| void |
| _mesa_update_shader_textures_used(struct gl_shader_program *shProg, |
| struct gl_program *prog) |
| { |
| GLuint s; |
| struct gl_shader *shader = |
| shProg->_LinkedShaders[_mesa_program_target_to_index(prog->Target)]; |
| |
| assert(shader); |
| |
| memcpy(prog->SamplerUnits, shader->SamplerUnits, sizeof(prog->SamplerUnits)); |
| memset(prog->TexturesUsed, 0, sizeof(prog->TexturesUsed)); |
| |
| for (s = 0; s < MAX_SAMPLERS; s++) { |
| if (prog->SamplersUsed & (1 << s)) { |
| GLuint unit = shader->SamplerUnits[s]; |
| GLuint tgt = shader->SamplerTargets[s]; |
| assert(unit < Elements(prog->TexturesUsed)); |
| assert(tgt < NUM_TEXTURE_TARGETS); |
| prog->TexturesUsed[unit] |= (1 << tgt); |
| } |
| } |
| } |
| |
| /** |
| * 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_attach_driver_storage(struct gl_uniform_storage *uni, |
| unsigned element_stride, |
| unsigned vector_stride, |
| enum gl_uniform_driver_format format, |
| void *data) |
| { |
| uni->driver_storage = |
| realloc(uni->driver_storage, |
| sizeof(struct gl_uniform_driver_storage) |
| * (uni->num_driver_storage + 1)); |
| |
| 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; |
| |
| uni->num_driver_storage++; |
| } |
| |
| /** |
| * 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_detach_all_driver_storage(struct gl_uniform_storage *uni) |
| { |
| free(uni->driver_storage); |
| uni->driver_storage = NULL; |
| uni->num_driver_storage = 0; |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform1f(GLint location, GLfloat v0) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_FLOAT); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform2f(GLint location, GLfloat v0, GLfloat v1) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLfloat v[2]; |
| v[0] = v0; |
| v[1] = v1; |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC2); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform3f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLfloat v[3]; |
| v[0] = v0; |
| v[1] = v1; |
| v[2] = v2; |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC3); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform4f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, |
| GLfloat v3) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLfloat v[4]; |
| v[0] = v0; |
| v[1] = v1; |
| v[2] = v2; |
| v[3] = v3; |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC4); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform1i(GLint location, GLint v0) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_INT); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform2i(GLint location, GLint v0, GLint v1) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLint v[2]; |
| v[0] = v0; |
| v[1] = v1; |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC2); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform3i(GLint location, GLint v0, GLint v1, GLint v2) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLint v[3]; |
| v[0] = v0; |
| v[1] = v1; |
| v[2] = v2; |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC3); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform4i(GLint location, GLint v0, GLint v1, GLint v2, GLint v3) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLint v[4]; |
| v[0] = v0; |
| v[1] = v1; |
| v[2] = v2; |
| v[3] = v3; |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC4); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform1fv(GLint location, GLsizei count, const GLfloat * value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform2fv(GLint location, GLsizei count, const GLfloat * value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC2); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform3fv(GLint location, GLsizei count, const GLfloat * value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC3); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform4fv(GLint location, GLsizei count, const GLfloat * value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC4); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform1iv(GLint location, GLsizei count, const GLint * value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform2iv(GLint location, GLsizei count, const GLint * value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC2); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform3iv(GLint location, GLsizei count, const GLint * value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC3); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform4iv(GLint location, GLsizei count, const GLint * value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC4); |
| } |
| |
| |
| /** OpenGL 3.0 GLuint-valued functions **/ |
| void GLAPIENTRY |
| _mesa_Uniform1ui(GLint location, GLuint v0) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_UNSIGNED_INT); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform2ui(GLint location, GLuint v0, GLuint v1) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLuint v[2]; |
| v[0] = v0; |
| v[1] = v1; |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC2); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform3ui(GLint location, GLuint v0, GLuint v1, GLuint v2) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLuint v[3]; |
| v[0] = v0; |
| v[1] = v1; |
| v[2] = v2; |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC3); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform4ui(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLuint v[4]; |
| v[0] = v0; |
| v[1] = v1; |
| v[2] = v2; |
| v[3] = v3; |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC4); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform1uiv(GLint location, GLsizei count, const GLuint *value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform2uiv(GLint location, GLsizei count, const GLuint *value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC2); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform3uiv(GLint location, GLsizei count, const GLuint *value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC3); |
| } |
| |
| void GLAPIENTRY |
| _mesa_Uniform4uiv(GLint location, GLsizei count, const GLuint *value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC4); |
| } |
| |
| |
| |
| void GLAPIENTRY |
| _mesa_UniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, |
| const GLfloat * value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, |
| 2, 2, location, count, transpose, value); |
| } |
| |
| void GLAPIENTRY |
| _mesa_UniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, |
| const GLfloat * value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, |
| 3, 3, location, count, transpose, value); |
| } |
| |
| void GLAPIENTRY |
| _mesa_UniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, |
| const GLfloat * value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, |
| 4, 4, location, count, transpose, value); |
| } |
| |
| |
| /** |
| * Non-square UniformMatrix are OpenGL 2.1 |
| */ |
| void GLAPIENTRY |
| _mesa_UniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose, |
| const GLfloat *value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, |
| 2, 3, location, count, transpose, value); |
| } |
| |
| void GLAPIENTRY |
| _mesa_UniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose, |
| const GLfloat *value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, |
| 3, 2, location, count, transpose, value); |
| } |
| |
| void GLAPIENTRY |
| _mesa_UniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose, |
| const GLfloat *value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, |
| 2, 4, location, count, transpose, value); |
| } |
| |
| void GLAPIENTRY |
| _mesa_UniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose, |
| const GLfloat *value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, |
| 4, 2, location, count, transpose, value); |
| } |
| |
| void GLAPIENTRY |
| _mesa_UniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose, |
| const GLfloat *value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, |
| 3, 4, location, count, transpose, value); |
| } |
| |
| void GLAPIENTRY |
| _mesa_UniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose, |
| const GLfloat *value) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram, |
| 4, 3, location, count, transpose, value); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_GetnUniformfvARB(GLhandleARB program, GLint location, |
| GLsizei bufSize, GLfloat *params) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_get_uniform(ctx, program, location, bufSize, GLSL_TYPE_FLOAT, params); |
| } |
| |
| void GLAPIENTRY |
| _mesa_GetUniformfv(GLhandleARB program, GLint location, GLfloat *params) |
| { |
| _mesa_GetnUniformfvARB(program, location, INT_MAX, params); |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_GetnUniformivARB(GLhandleARB program, GLint location, |
| GLsizei bufSize, GLint *params) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_get_uniform(ctx, program, location, bufSize, GLSL_TYPE_INT, params); |
| } |
| |
| void GLAPIENTRY |
| _mesa_GetUniformiv(GLhandleARB program, GLint location, GLint *params) |
| { |
| _mesa_GetnUniformivARB(program, location, INT_MAX, params); |
| } |
| |
| |
| /* GL3 */ |
| void GLAPIENTRY |
| _mesa_GetnUniformuivARB(GLhandleARB program, GLint location, |
| GLsizei bufSize, GLuint *params) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| _mesa_get_uniform(ctx, program, location, bufSize, GLSL_TYPE_UINT, params); |
| } |
| |
| void GLAPIENTRY |
| _mesa_GetUniformuiv(GLhandleARB program, GLint location, GLuint *params) |
| { |
| _mesa_GetnUniformuivARB(program, location, INT_MAX, params); |
| } |
| |
| |
| /* GL4 */ |
| void GLAPIENTRY |
| _mesa_GetnUniformdvARB(GLhandleARB program, GLint location, |
| GLsizei bufSize, GLdouble *params) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| |
| (void) program; |
| (void) location; |
| (void) bufSize; |
| (void) params; |
| |
| /* |
| _mesa_get_uniform(ctx, program, location, bufSize, GLSL_TYPE_DOUBLE, params); |
| */ |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformdvARB" |
| "(GL_ARB_gpu_shader_fp64 not implemented)"); |
| } |
| |
| void GLAPIENTRY |
| _mesa_GetUniformdv(GLhandleARB program, GLint location, GLdouble *params) |
| { |
| _mesa_GetnUniformdvARB(program, location, INT_MAX, params); |
| } |
| |
| |
| GLint GLAPIENTRY |
| _mesa_GetUniformLocation(GLhandleARB programObj, const GLcharARB *name) |
| { |
| struct gl_shader_program *shProg; |
| GLuint index, offset; |
| |
| GET_CURRENT_CONTEXT(ctx); |
| |
| shProg = _mesa_lookup_shader_program_err(ctx, programObj, |
| "glGetUniformLocation"); |
| 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; |
| } |
| |
| index = _mesa_get_uniform_location(ctx, shProg, name, &offset); |
| if (index == GL_INVALID_INDEX) |
| return -1; |
| |
| /* From the GL_ARB_uniform_buffer_object spec: |
| * |
| * "The value -1 will be returned if <name> does not correspond to an |
| * active uniform variable name in <program>, if <name> is associated |
| * with a named uniform block, or if <name> starts with the reserved |
| * prefix "gl_"." |
| */ |
| if (shProg->UniformStorage[index].block_index != -1) |
| return -1; |
| |
| return _mesa_uniform_merge_location_offset(shProg, index, offset); |
| } |
| |
| GLuint GLAPIENTRY |
| _mesa_GetUniformBlockIndex(GLuint program, |
| const GLchar *uniformBlockName) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLuint i; |
| struct gl_shader_program *shProg; |
| |
| if (!ctx->Extensions.ARB_uniform_buffer_object) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformBlockIndex"); |
| return GL_INVALID_INDEX; |
| } |
| |
| shProg = _mesa_lookup_shader_program_err(ctx, program, |
| "glGetUniformBlockIndex"); |
| if (!shProg) |
| return GL_INVALID_INDEX; |
| |
| for (i = 0; i < shProg->NumUniformBlocks; i++) { |
| if (!strcmp(shProg->UniformBlocks[i].Name, uniformBlockName)) |
| return i; |
| } |
| |
| return GL_INVALID_INDEX; |
| } |
| |
| void GLAPIENTRY |
| _mesa_GetUniformIndices(GLuint program, |
| GLsizei uniformCount, |
| const GLchar * const *uniformNames, |
| GLuint *uniformIndices) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLsizei i; |
| struct gl_shader_program *shProg; |
| |
| if (!ctx->Extensions.ARB_uniform_buffer_object) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformIndices"); |
| return; |
| } |
| |
| shProg = _mesa_lookup_shader_program_err(ctx, program, |
| "glGetUniformIndices"); |
| if (!shProg) |
| return; |
| |
| if (uniformCount < 0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glGetUniformIndices(uniformCount < 0)"); |
| return; |
| } |
| |
| for (i = 0; i < uniformCount; i++) { |
| unsigned offset; |
| uniformIndices[i] = _mesa_get_uniform_location(ctx, shProg, |
| uniformNames[i], &offset); |
| } |
| } |
| |
| void GLAPIENTRY |
| _mesa_UniformBlockBinding(GLuint program, |
| GLuint uniformBlockIndex, |
| GLuint uniformBlockBinding) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_shader_program *shProg; |
| |
| if (!ctx->Extensions.ARB_uniform_buffer_object) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glUniformBlockBinding"); |
| return; |
| } |
| |
| shProg = _mesa_lookup_shader_program_err(ctx, program, |
| "glUniformBlockBinding"); |
| if (!shProg) |
| return; |
| |
| if (uniformBlockIndex >= shProg->NumUniformBlocks) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glUniformBlockBinding(block index %u >= %u)", |
| uniformBlockIndex, shProg->NumUniformBlocks); |
| return; |
| } |
| |
| if (uniformBlockBinding >= ctx->Const.MaxUniformBufferBindings) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glUniformBlockBinding(block binding %u >= %u)", |
| uniformBlockBinding, ctx->Const.MaxUniformBufferBindings); |
| return; |
| } |
| |
| if (shProg->UniformBlocks[uniformBlockIndex].Binding != |
| uniformBlockBinding) { |
| int i; |
| |
| FLUSH_VERTICES(ctx, 0); |
| ctx->NewDriverState |= ctx->DriverFlags.NewUniformBuffer; |
| |
| shProg->UniformBlocks[uniformBlockIndex].Binding = uniformBlockBinding; |
| |
| for (i = 0; i < MESA_SHADER_TYPES; i++) { |
| int stage_index = shProg->UniformBlockStageIndex[i][uniformBlockIndex]; |
| |
| if (stage_index != -1) { |
| struct gl_shader *sh = shProg->_LinkedShaders[i]; |
| sh->UniformBlocks[stage_index].Binding = uniformBlockBinding; |
| } |
| } |
| } |
| } |
| |
| void GLAPIENTRY |
| _mesa_GetActiveUniformBlockiv(GLuint program, |
| GLuint uniformBlockIndex, |
| GLenum pname, |
| GLint *params) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_shader_program *shProg; |
| struct gl_uniform_block *block; |
| unsigned i; |
| |
| if (!ctx->Extensions.ARB_uniform_buffer_object) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetActiveUniformBlockiv"); |
| return; |
| } |
| |
| shProg = _mesa_lookup_shader_program_err(ctx, program, |
| "glGetActiveUniformBlockiv"); |
| if (!shProg) |
| return; |
| |
| if (uniformBlockIndex >= shProg->NumUniformBlocks) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glGetActiveUniformBlockiv(block index %u >= %u)", |
| uniformBlockIndex, shProg->NumUniformBlocks); |
| return; |
| } |
| |
| block = &shProg->UniformBlocks[uniformBlockIndex]; |
| |
| switch (pname) { |
| case GL_UNIFORM_BLOCK_BINDING: |
| params[0] = block->Binding; |
| return; |
| |
| case GL_UNIFORM_BLOCK_DATA_SIZE: |
| params[0] = block->UniformBufferSize; |
| return; |
| |
| case GL_UNIFORM_BLOCK_NAME_LENGTH: |
| params[0] = strlen(block->Name) + 1; |
| return; |
| |
| case GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS: |
| params[0] = block->NumUniforms; |
| return; |
| |
| case GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES: |
| for (i = 0; i < block->NumUniforms; i++) { |
| unsigned offset; |
| params[i] = _mesa_get_uniform_location(ctx, shProg, |
| block->Uniforms[i].IndexName, |
| &offset); |
| } |
| return; |
| |
| case GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER: |
| params[0] = shProg->UniformBlockStageIndex[MESA_SHADER_VERTEX][uniformBlockIndex] != -1; |
| return; |
| |
| case GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER: |
| params[0] = shProg->UniformBlockStageIndex[MESA_SHADER_GEOMETRY][uniformBlockIndex] != -1; |
| return; |
| |
| case GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER: |
| params[0] = shProg->UniformBlockStageIndex[MESA_SHADER_FRAGMENT][uniformBlockIndex] != -1; |
| return; |
| |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, |
| "glGetActiveUniformBlockiv(pname 0x%x (%s))", |
| pname, _mesa_lookup_enum_by_nr(pname)); |
| return; |
| } |
| } |
| |
| void GLAPIENTRY |
| _mesa_GetActiveUniformBlockName(GLuint program, |
| GLuint uniformBlockIndex, |
| GLsizei bufSize, |
| GLsizei *length, |
| GLchar *uniformBlockName) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_shader_program *shProg; |
| struct gl_uniform_block *block; |
| |
| if (!ctx->Extensions.ARB_uniform_buffer_object) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetActiveUniformBlockiv"); |
| return; |
| } |
| |
| if (bufSize < 0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glGetActiveUniformBlockName(bufSize %d < 0)", |
| bufSize); |
| return; |
| } |
| |
| shProg = _mesa_lookup_shader_program_err(ctx, program, |
| "glGetActiveUniformBlockiv"); |
| if (!shProg) |
| return; |
| |
| if (uniformBlockIndex >= shProg->NumUniformBlocks) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glGetActiveUniformBlockiv(block index %u >= %u)", |
| uniformBlockIndex, shProg->NumUniformBlocks); |
| return; |
| } |
| |
| block = &shProg->UniformBlocks[uniformBlockIndex]; |
| |
| if (uniformBlockName) { |
| _mesa_copy_string(uniformBlockName, bufSize, length, block->Name); |
| } |
| } |
| |
| void GLAPIENTRY |
| _mesa_GetActiveUniformName(GLuint program, GLuint uniformIndex, |
| GLsizei bufSize, GLsizei *length, |
| GLchar *uniformName) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_shader_program *shProg; |
| |
| if (!ctx->Extensions.ARB_uniform_buffer_object) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetActiveUniformBlockiv"); |
| return; |
| } |
| |
| if (bufSize < 0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glGetActiveUniformName(bufSize %d < 0)", |
| bufSize); |
| return; |
| } |
| |
| shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniformName"); |
| |
| if (!shProg) |
| return; |
| |
| if (uniformIndex >= shProg->NumUserUniformStorage) { |
| _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform(index)"); |
| return; |
| } |
| |
| if (uniformName) { |
| _mesa_get_uniform_name(& shProg->UniformStorage[uniformIndex], |
| bufSize, length, uniformName); |
| } |
| } |
| |
| void |
| _mesa_get_uniform_name(const struct gl_uniform_storage *uni, |
| GLsizei maxLength, GLsizei *length, |
| GLchar *nameOut) |
| { |
| GLsizei localLength; |
| |
| if (length == NULL) |
| length = &localLength; |
| |
| _mesa_copy_string(nameOut, maxLength, length, uni->name); |
| |
| /* Page 61 (page 73 of the PDF) in section 2.11 of the OpenGL ES 3.0 |
| * spec says: |
| * |
| * "If the active uniform is an array, the uniform name returned in |
| * name will always be the name of the uniform array appended with |
| * "[0]"." |
| * |
| * The same text also appears in the OpenGL 4.2 spec. It does not, |
| * however, appear in any previous spec. Previous specifications are |
| * ambiguous in this regard. However, either name can later be passed |
| * to glGetUniformLocation (and related APIs), so there shouldn't be any |
| * harm in always appending "[0]" to uniform array names. |
| */ |
| if (uni->array_elements != 0) { |
| int i; |
| |
| /* The comparison is strange because *length does *NOT* include the |
| * terminating NUL, but maxLength does. |
| */ |
| for (i = 0; i < 3 && (*length + i + 1) < maxLength; i++) |
| nameOut[*length + i] = "[0]"[i]; |
| |
| nameOut[*length + i] = '\0'; |
| *length += i; |
| } |
| } |