diff options
| -rw-r--r-- | src/mesa/shader/shader_api.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c index e738cde791..013e912e5d 100644 --- a/src/mesa/shader/shader_api.c +++ b/src/mesa/shader/shader_api.c @@ -1603,27 +1603,36 @@ set_program_uniform(GLcontext *ctx, struct gl_program *program, if (param->Type == PROGRAM_SAMPLER) { /* This controls which texture unit which is used by a sampler */ GLuint texUnit, sampler; + GLint i; /* data type for setting samplers must be int */ - if (type != GL_INT || count != 1) { + if (type != GL_INT) { _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(only glUniform1i can be used " "to set sampler uniforms)"); return; } - sampler = (GLuint) program->Parameters->ParameterValues[index][0]; - texUnit = ((GLuint *) values)[0]; + /* XXX arrays of samplers haven't been tested much, but it's not a + * common thing... + */ + for (i = 0; i < count; i++) { + sampler = (GLuint) program->Parameters->ParameterValues[index + i][0]; + 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)"); + return; + } - /* 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)"); - return; + /* This maps a sampler to a texture unit: */ + if (sampler < MAX_SAMPLERS) { + program->SamplerUnits[sampler] = texUnit; + } } - /* This maps a sampler to a texture unit: */ - program->SamplerUnits[sampler] = texUnit; _mesa_update_shader_textures_used(program); FLUSH_VERTICES(ctx, _NEW_TEXTURE); |