X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Funiform_query.cpp;h=2ab5528c323ec78647c638afee637725920ab5e8;hb=2768a0b1b42f3c1531ab9c3647a93f0504002280;hp=2dc9f273b47d90dcb265223a01263397b4027ce6;hpb=8f81f4e18537fcb7cd1cc5e0dec679d20b7d769c;p=mesa.git diff --git a/src/mesa/main/uniform_query.cpp b/src/mesa/main/uniform_query.cpp index 2dc9f273b47..2ab5528c323 100644 --- a/src/mesa/main/uniform_query.cpp +++ b/src/mesa/main/uniform_query.cpp @@ -45,9 +45,14 @@ _mesa_GetActiveUniform(GLuint program, GLuint index, GLenum *type, GLcharARB *nameOut) { GET_CURRENT_CONTEXT(ctx); - struct gl_shader_program *shProg = - _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform"); + struct gl_shader_program *shProg; + + if (maxLength < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform(maxLength < 0)"); + return; + } + shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform"); if (!shProg) return; @@ -85,16 +90,16 @@ _mesa_GetActiveUniformsiv(GLuint program, struct gl_shader_program *shProg; GLsizei i; - shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform"); - if (!shProg) - return; - if (uniformCount < 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniformsiv(uniformCount < 0)"); return; } + shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform"); + if (!shProg) + return; + for (i = 0; i < uniformCount; i++) { GLuint index = uniformIndices[i]; @@ -176,46 +181,13 @@ validate_uniform_parameters(struct gl_context *ctx, struct gl_shader_program *shProg, GLint location, GLsizei count, unsigned *array_index, - const char *caller, - bool negative_one_is_not_valid) + const char *caller) { - if (!shProg || !shProg->LinkStatus) { + if (shProg == NULL) { _mesa_error(ctx, GL_INVALID_OPERATION, "%s(program not linked)", caller); return NULL; } - if (location == -1) { - /* For glGetUniform, page 264 (page 278 of the PDF) of the OpenGL 2.1 - * spec says: - * - * "The error INVALID_OPERATION is generated if program has not been - * linked successfully, or if location is not a valid location for - * program." - * - * For glUniform, page 82 (page 96 of the PDF) of the OpenGL 2.1 spec - * says: - * - * "If the value of location is -1, the Uniform* commands will - * silently ignore the data passed in, and the current uniform - * values will not be changed." - * - * Allowing -1 for the location parameter of glUniform allows - * applications to avoid error paths in the case that, for example, some - * uniform variable is removed by the compiler / linker after - * optimization. In this case, the new value of the uniform is dropped - * on the floor. For the case of glGetUniform, there is nothing - * sensible to do for a location of -1. - * - * The negative_one_is_not_valid flag selects between the two behaviors. - */ - if (negative_one_is_not_valid) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s(location=%d)", - caller, location); - } - - return NULL; - } - /* From page 12 (page 26 of the PDF) of the OpenGL 2.1 spec: * * "If a negative number is provided where an argument of type sizei or @@ -226,6 +198,29 @@ validate_uniform_parameters(struct gl_context *ctx, return NULL; } + /* Check that the given location is in bounds of uniform remap table. + * Unlinked programs will have NumUniformRemapTable == 0, so we can take + * the shProg->LinkStatus check out of the main path. + */ + if (unlikely(location >= (GLint) shProg->NumUniformRemapTable)) { + if (!shProg->LinkStatus) + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(program not linked)", + caller); + else + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(location=%d)", + caller, location); + + return NULL; + } + + if (location == -1) { + if (!shProg->LinkStatus) + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(program not linked)", + caller); + + return NULL; + } + /* Page 82 (page 96 of the PDF) of the OpenGL 2.1 spec says: * * "If any of the following conditions occur, an INVALID_OPERATION @@ -239,19 +234,12 @@ validate_uniform_parameters(struct gl_context *ctx, * - if count is greater than one, and the uniform declared in the * shader is not an array variable, */ - if (location < -1) { + if (location < -1 || !shProg->UniformRemapTable[location]) { _mesa_error(ctx, GL_INVALID_OPERATION, "%s(location=%d)", caller, location); return NULL; } - /* Check that the given location is in bounds of uniform remap table. */ - if (location >= (GLint) shProg->NumUniformRemapTable) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s(location=%d)", - caller, location); - return NULL; - } - /* If the driver storage pointer in remap table is -1, we ignore silently. * * GL_ARB_explicit_uniform_location spec says: @@ -267,26 +255,32 @@ validate_uniform_parameters(struct gl_context *ctx, INACTIVE_UNIFORM_EXPLICIT_LOCATION) return NULL; - unsigned loc; - _mesa_uniform_split_location_offset(shProg, location, &loc, array_index); - struct gl_uniform_storage *const uni = &shProg->UniformStorage[loc]; + struct gl_uniform_storage *const uni = shProg->UniformRemapTable[location]; - if (uni->array_elements == 0 && count > 1) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "%s(count > 1 for non-array, location=%d)", - caller, location); - return NULL; - } + if (uni->array_elements == 0) { + if (count > 1) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(count = %u for non-array \"%s\"@%d)", + caller, count, uni->name, location); + return NULL; + } - /* If the uniform is an array, check that array_index is in bounds. - * If not an array, check that array_index is zero. - * array_index is unsigned so no need to check for less than zero. - */ - const unsigned limit = MAX2(uni->array_elements, 1); - if (*array_index >= limit) { - _mesa_error(ctx, GL_INVALID_OPERATION, "%s(location=%d)", - caller, location); - return NULL; + assert((location - uni->remap_location) == 0); + *array_index = 0; + } else { + /* The array index specified by the uniform location is just the uniform + * location minus the base location of of the uniform. + */ + *array_index = location - uni->remap_location; + + /* If the uniform is an array, check that array_index is in bounds. + * array_index is unsigned so no need to check for less than zero. + */ + if (*array_index >= uni->array_elements) { + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(location=%d)", + caller, location); + return NULL; + } } return uni; } @@ -305,9 +299,39 @@ _mesa_get_uniform(struct gl_context *ctx, GLuint program, GLint location, struct gl_uniform_storage *const uni = validate_uniform_parameters(ctx, shProg, location, 1, - &offset, "glGetUniform", true); - if (uni == NULL) + &offset, "glGetUniform"); + if (uni == NULL) { + /* For glGetUniform, page 264 (page 278 of the PDF) of the OpenGL 2.1 + * spec says: + * + * "The error INVALID_OPERATION is generated if program has not been + * linked successfully, or if location is not a valid location for + * program." + * + * For glUniform, page 82 (page 96 of the PDF) of the OpenGL 2.1 spec + * says: + * + * "If the value of location is -1, the Uniform* commands will + * silently ignore the data passed in, and the current uniform + * values will not be changed." + * + * Allowing -1 for the location parameter of glUniform allows + * applications to avoid error paths in the case that, for example, some + * uniform variable is removed by the compiler / linker after + * optimization. In this case, the new value of the uniform is dropped + * on the floor. For the case of glGetUniform, there is nothing + * sensible to do for a location of -1. + * + * If the location was -1, validate_unfirom_parameters will return NULL + * without raising an error. Raise the error here. + */ + if (location == -1) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniform(location=%d)", + location); + } + return; + } { unsigned elements = (uni->type->is_sampler()) @@ -339,8 +363,7 @@ _mesa_get_uniform(struct gl_context *ctx, GLuint program, GLint location, */ if (returnType == uni->type->base_type || ((returnType == GLSL_TYPE_INT - || returnType == GLSL_TYPE_UINT - || returnType == GLSL_TYPE_SAMPLER) + || returnType == GLSL_TYPE_UINT) && (uni->type->base_type == GLSL_TYPE_INT || uni->type->base_type == GLSL_TYPE_UINT @@ -446,6 +469,9 @@ log_uniform(const void *values, enum glsl_base_type basicType, case GLSL_TYPE_FLOAT: printf("%g ", v[i].f); break; + case GLSL_TYPE_DOUBLE: + printf("%g ", *(double* )&v[i * 2].f); + break; default: assert(!"Should not get here."); break; @@ -506,11 +532,12 @@ _mesa_propagate_uniforms_to_driver_storage(struct gl_uniform_storage *uni, */ const unsigned components = MAX2(1, uni->type->vector_elements); const unsigned vectors = MAX2(1, uni->type->matrix_columns); + const int dmul = uni->type->base_type == GLSL_TYPE_DOUBLE ? 2 : 1; /* Store the data in the driver's requested type in the driver's storage * areas. */ - unsigned src_vector_byte_stride = components * 4; + unsigned src_vector_byte_stride = components * 4 * dmul; for (i = 0; i < uni->num_driver_storage; i++) { struct gl_uniform_driver_storage *const store = &uni->driver_storage[i]; @@ -518,7 +545,7 @@ _mesa_propagate_uniforms_to_driver_storage(struct gl_uniform_storage *uni, const unsigned extra_stride = store->element_stride - (vectors * store->vector_stride); const uint8_t *src = - (uint8_t *) (&uni->storage[array_index * (components * vectors)].i); + (uint8_t *) (&uni->storage[array_index * (dmul * components * vectors)].i); #if 0 printf("%s: %p[%d] components=%u vectors=%u count=%u vector_stride=%u " @@ -530,8 +557,7 @@ _mesa_propagate_uniforms_to_driver_storage(struct gl_uniform_storage *uni, dst += array_index * store->element_stride; switch (store->format) { - case uniform_native: - case uniform_bool_int_0_1: { + case uniform_native: { unsigned j; unsigned v; @@ -547,8 +573,7 @@ _mesa_propagate_uniforms_to_driver_storage(struct gl_uniform_storage *uni, break; } - case uniform_int_float: - case uniform_bool_float: { + case uniform_int_float: { const int *isrc = (const int *) src; unsigned j; unsigned v; @@ -569,27 +594,6 @@ _mesa_propagate_uniforms_to_driver_storage(struct gl_uniform_storage *uni, break; } - case uniform_bool_int_0_not0: { - const int *isrc = (const int *) src; - unsigned j; - unsigned v; - unsigned c; - - for (j = 0; j < count; j++) { - for (v = 0; v < vectors; v++) { - for (c = 0; c < components; c++) { - ((int *) dst)[c] = *isrc == 0 ? 0 : ~0; - isrc++; - } - - dst += store->vector_stride; - } - - dst += extra_stride; - } - break; - } - default: assert(!"Should not get here."); break; @@ -597,104 +601,91 @@ _mesa_propagate_uniforms_to_driver_storage(struct gl_uniform_storage *uni, } } + +/** + * Return printable string for a given GLSL_TYPE_x + */ +static const char * +glsl_type_name(enum glsl_base_type type) +{ + switch (type) { + case GLSL_TYPE_UINT: + return "uint"; + case GLSL_TYPE_INT: + return "int"; + case GLSL_TYPE_FLOAT: + return "float"; + case GLSL_TYPE_DOUBLE: + return "double"; + case GLSL_TYPE_BOOL: + return "bool"; + case GLSL_TYPE_SAMPLER: + return "sampler"; + case GLSL_TYPE_IMAGE: + return "image"; + case GLSL_TYPE_ATOMIC_UINT: + return "atomic_uint"; + case GLSL_TYPE_STRUCT: + return "struct"; + case GLSL_TYPE_INTERFACE: + return "interface"; + case GLSL_TYPE_ARRAY: + return "array"; + case GLSL_TYPE_VOID: + return "void"; + case GLSL_TYPE_ERROR: + return "error"; + default: + return "other"; + } +} + + /** * Called via glUniform*() functions. */ extern "C" void _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, GLint location, GLsizei count, - const GLvoid *values, GLenum type) + const GLvoid *values, + enum glsl_base_type basicType, + unsigned src_components) { unsigned offset; - unsigned components; - unsigned src_components; - enum glsl_base_type basicType; + int size_mul = basicType == GLSL_TYPE_DOUBLE ? 2 : 1; struct gl_uniform_storage *const uni = validate_uniform_parameters(ctx, shProg, location, count, - &offset, "glUniform", false); + &offset, "glUniform"); if (uni == NULL) return; - /* Verify that the types are compatible. - */ - switch (type) { - case GL_FLOAT: - basicType = GLSL_TYPE_FLOAT; - src_components = 1; - break; - case GL_FLOAT_VEC2: - basicType = GLSL_TYPE_FLOAT; - src_components = 2; - break; - case GL_FLOAT_VEC3: - basicType = GLSL_TYPE_FLOAT; - src_components = 3; - break; - case GL_FLOAT_VEC4: - basicType = GLSL_TYPE_FLOAT; - src_components = 4; - break; - case GL_UNSIGNED_INT: - basicType = GLSL_TYPE_UINT; - src_components = 1; - break; - case GL_UNSIGNED_INT_VEC2: - basicType = GLSL_TYPE_UINT; - src_components = 2; - break; - case GL_UNSIGNED_INT_VEC3: - basicType = GLSL_TYPE_UINT; - src_components = 3; - break; - case GL_UNSIGNED_INT_VEC4: - basicType = GLSL_TYPE_UINT; - src_components = 4; - break; - case GL_INT: - basicType = GLSL_TYPE_INT; - src_components = 1; - break; - case GL_INT_VEC2: - basicType = GLSL_TYPE_INT; - src_components = 2; - break; - case GL_INT_VEC3: - basicType = GLSL_TYPE_INT; - src_components = 3; - break; - case GL_INT_VEC4: - basicType = GLSL_TYPE_INT; - src_components = 4; - break; - case GL_BOOL: - case GL_BOOL_VEC2: - case GL_BOOL_VEC3: - case GL_BOOL_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: - default: - _mesa_problem(NULL, "Invalid type in %s", __func__); + if (uni->type->is_matrix()) { + /* Can't set matrix uniforms (like mat4) with glUniform */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUniform%u(uniform \"%s\"@%d is matrix)", + src_components, uni->name, location); return; } - if (uni->type->is_sampler()) { - components = 1; - } else { - components = uni->type->vector_elements; + /* Verify that the types are compatible. + */ + const unsigned components = uni->type->is_sampler() + ? 1 : uni->type->vector_elements; + + if (components != src_components) { + /* glUniformN() must match float/vecN type */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUniform%u(\"%s\"@%u has %u components, not %u)", + src_components, uni->name, location, + components, src_components); + return; } bool match; switch (uni->type->base_type) { case GLSL_TYPE_BOOL: - match = true; + match = (basicType != GLSL_TYPE_DOUBLE); break; case GLSL_TYPE_SAMPLER: case GLSL_TYPE_IMAGE: @@ -705,12 +696,16 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, break; } - if (uni->type->is_matrix() || components != src_components || !match) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(type mismatch)"); + if (!match) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glUniform%u(\"%s\"@%d is %s, not %s)", + src_components, uni->name, location, + glsl_type_name(uni->type->base_type), + glsl_type_name(basicType)); return; } - if (ctx->_Shader->Flags & GLSL_UNIFORMS) { + if (unlikely(ctx->_Shader->Flags & GLSL_UNIFORMS)) { log_uniform(values, basicType, components, 1, count, false, shProg, location, uni); } @@ -733,9 +728,7 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, * GL_INVALID_VALUE error and ignore the command. */ if (uni->type->is_sampler()) { - int i; - - for (i = 0; i < count; i++) { + for (int i = 0; i < count; i++) { const unsigned texUnit = ((unsigned *) values)[i]; /* check that the sampler (tex unit index) is legal */ @@ -750,9 +743,7 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, } if (uni->type->is_image()) { - int i; - - for (i = 0; i < count; i++) { + for (int i = 0; i < count; i++) { const int unit = ((GLint *) values)[i]; /* check that the image unit is legal */ @@ -785,20 +776,19 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, /* Store the data in the "actual type" backing storage for the uniform. */ if (!uni->type->is_boolean()) { - memcpy(&uni->storage[components * offset], values, - sizeof(uni->storage[0]) * components * count); + memcpy(&uni->storage[size_mul * components * offset], values, + sizeof(uni->storage[0]) * components * count * size_mul); } else { const union gl_constant_value *src = (const union gl_constant_value *) values; union gl_constant_value *dst = &uni->storage[components * offset]; const unsigned elems = components * count; - unsigned i; - for (i = 0; i < elems; i++) { + for (unsigned i = 0; i < elems; i++) { if (basicType == GLSL_TYPE_FLOAT) { - dst[i].i = src[i].f != 0.0f ? 1 : 0; + dst[i].i = src[i].f != 0.0f ? ctx->Const.UniformBooleanTrue : 0; } else { - dst[i].i = src[i].i != 0 ? 1 : 0; + dst[i].i = src[i].i != 0 ? ctx->Const.UniformBooleanTrue : 0; } } } @@ -811,19 +801,16 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, * the changes through. */ if (uni->type->is_sampler()) { - int i; - bool flushed = false; - for (i = 0; i < MESA_SHADER_STAGES; i++) { + for (int i = 0; i < MESA_SHADER_STAGES; i++) { struct gl_shader *const sh = shProg->_LinkedShaders[i]; - int j; /* If the shader stage doesn't use the sampler uniform, skip this. */ if (sh == NULL || !uni->sampler[i].active) continue; - for (j = 0; j < count; j++) { + for (int j = 0; j < count; j++) { sh->SamplerUnits[uni->sampler[i].index + offset + j] = ((unsigned *) values)[j]; } @@ -836,7 +823,7 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, * been modified. */ bool changed = false; - for (unsigned j = 0; j < Elements(prog->SamplerUnits); j++) { + for (unsigned j = 0; j < ARRAY_SIZE(prog->SamplerUnits); j++) { if ((sh->active_samplers & (1U << j)) != 0 && (prog->SamplerUnits[j] != sh->SamplerUnits[j])) { changed = true; @@ -865,13 +852,11 @@ _mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg, * uniforms to image units present in the shader data structure. */ if (uni->type->is_image()) { - int i, j; - - for (i = 0; i < MESA_SHADER_STAGES; i++) { + for (int i = 0; i < MESA_SHADER_STAGES; i++) { if (uni->image[i].active) { struct gl_shader *sh = shProg->_LinkedShaders[i]; - for (j = 0; j < count; j++) + for (int j = 0; j < count; j++) sh->ImageUnits[uni->image[i].index + offset + j] = ((GLint *) values)[j]; } @@ -889,16 +874,17 @@ extern "C" void _mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg, GLuint cols, GLuint rows, GLint location, GLsizei count, - GLboolean transpose, const GLfloat *values) + GLboolean transpose, + const GLvoid *values, GLenum type) { unsigned offset; unsigned vectors; unsigned components; unsigned elements; - + int size_mul; struct gl_uniform_storage *const uni = validate_uniform_parameters(ctx, shProg, location, count, - &offset, "glUniformMatrix", false); + &offset, "glUniformMatrix"); if (uni == NULL) return; @@ -908,6 +894,9 @@ _mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg, return; } + assert(type == GL_FLOAT || type == GL_DOUBLE); + size_mul = type == GL_DOUBLE ? 2 : 1; + assert(!uni->type->is_sampler()); vectors = uni->type->matrix_columns; components = uni->type->vector_elements; @@ -922,18 +911,18 @@ _mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg, } /* GL_INVALID_VALUE is generated if `transpose' is not GL_FALSE. - * http://www.khronos.org/opengles/sdk/docs/man/xhtml/glUniform.xml */ - if (ctx->API == API_OPENGLES - || (ctx->API == API_OPENGLES2 && ctx->Version < 30)) { - if (transpose) { + * http://www.khronos.org/opengles/sdk/docs/man/xhtml/glUniform.xml + */ + if (transpose) { + if (ctx->API == API_OPENGLES2 && ctx->Version < 30) { _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix(matrix transpose is not GL_FALSE)"); return; } } - if (ctx->_Shader->Flags & GLSL_UNIFORMS) { - log_uniform(values, GLSL_TYPE_FLOAT, components, vectors, count, + if (unlikely(ctx->_Shader->Flags & GLSL_UNIFORMS)) { + log_uniform(values, uni->type->base_type, components, vectors, count, bool(transpose), shProg, location, uni); } @@ -960,13 +949,28 @@ _mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg, if (!transpose) { memcpy(&uni->storage[elements * offset], values, - sizeof(uni->storage[0]) * elements * count); - } else { + sizeof(uni->storage[0]) * elements * count * size_mul); + } else if (type == GL_FLOAT) { /* Copy and transpose the matrix. */ - const float *src = values; + const float *src = (const float *)values; float *dst = &uni->storage[elements * offset].f; + for (int i = 0; i < count; i++) { + for (unsigned r = 0; r < rows; r++) { + for (unsigned c = 0; c < cols; c++) { + dst[(c * components) + r] = src[c + (r * vectors)]; + } + } + + dst += elements; + src += elements; + } + } else { + assert(type == GL_DOUBLE); + const double *src = (const double *)values; + double *dst = (double *)&uni->storage[elements * offset].f; + for (int i = 0; i < count; i++) { for (unsigned r = 0; r < rows; r++) { for (unsigned c = 0; c < cols; c++) { @@ -990,13 +994,10 @@ _mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg, * * Returns the uniform index into UniformStorage (also the * glGetActiveUniformsiv uniform index), and stores the referenced - * array offset in *offset, or GL_INVALID_INDEX (-1). Those two - * return values can be encoded into a uniform location for - * glUniform* using _mesa_uniform_merge_location_offset(index, offset). + * array offset in *offset, or GL_INVALID_INDEX (-1). */ extern "C" unsigned -_mesa_get_uniform_location(struct gl_context *ctx, - struct gl_shader_program *shProg, +_mesa_get_uniform_location(struct gl_shader_program *shProg, const GLchar *name, unsigned *out_offset) { @@ -1063,42 +1064,16 @@ extern "C" bool _mesa_sampler_uniforms_are_valid(const struct gl_shader_program *shProg, char *errMsg, size_t errMsgLength) { - const glsl_type *unit_types[MAX_COMBINED_TEXTURE_IMAGE_UNITS]; - - memset(unit_types, 0, sizeof(unit_types)); - - for (unsigned i = 0; i < shProg->NumUserUniformStorage; i++) { - const struct gl_uniform_storage *const storage = - &shProg->UniformStorage[i]; - const glsl_type *const t = (storage->type->is_array()) - ? storage->type->fields.array : storage->type; - - if (!t->is_sampler()) - continue; - - const unsigned count = MAX2(1, storage->type->array_size()); - for (unsigned j = 0; j < count; j++) { - const unsigned unit = storage->storage[j].i; - - /* The types of the samplers associated with a particular texture - * unit must be an exact match. Page 74 (page 89 of the PDF) of the - * OpenGL 3.3 core spec says: - * - * "It is not allowed to have variables of different sampler - * types pointing to the same texture image unit within a program - * object." - */ - if (unit_types[unit] == NULL) { - unit_types[unit] = t; - } else if (unit_types[unit] != t) { - _mesa_snprintf(errMsg, errMsgLength, - "Texture unit %d is accessed both as %s and %s", - unit, unit_types[unit]->name, t->name); - return false; - } - } + /* Shader does not have samplers. */ + if (shProg->NumUserUniformStorage == 0) + return true; + + if (!shProg->SamplersValidated) { + _mesa_snprintf(errMsg, errMsgLength, + "active samplers with a different type " + "refer to the same texture image unit"); + return false; } - return true; }