return -1;
}
+/**
+ * Write a uniform variable into program's memory.
+ * \return GL_TRUE for success, GL_FALSE if error
+ */
static GLboolean
_program_WriteUniform(struct gl2_program_intf **intf, GLint loc,
GLsizei count, const GLvoid * data, GLenum type)
GLboolean convert_int_to_float = GL_FALSE;
GLboolean types_match = GL_FALSE;
- if (loc == -1)
- return GL_TRUE;
- if (loc >= uniforms->count)
+ if (loc < 0 || loc >= uniforms->count)
return GL_FALSE;
uniform = &uniforms->table[loc];
break;
}
- if (convert_float_to_bool) {
- for (i = 0; i < SLANG_SHADER_MAX; i++)
- if (uniform->address[i] != ~0) {
+ for (i = 0; i < SLANG_SHADER_MAX; i++) {
+ if (uniform->address[i] != ~0) {
+ void *dest
+ = &impl->_obj.prog.machines[i]->mem[uniform->address[i] / 4];
+ /* total number of values to copy */
+ GLuint total
+ = count * slang_export_data_quant_components(uniform->quant);
+ GLuint j;
+ if (convert_float_to_bool) {
const GLfloat *src = (GLfloat *) (data);
- GLfloat *dst = (GLfloat *)
- (&impl->_obj.prog.machines[i]->mem[uniform->address[i] / 4]);
- GLuint j;
- GLuint total =
- count * slang_export_data_quant_components(uniform->quant);
-
+ GLfloat *dst = (GLfloat *) dest;
for (j = 0; j < total; j++)
dst[j] = src[j] != 0.0f ? 1.0f : 0.0f;
+ break;
}
- }
- else if (convert_int_to_bool) {
- for (i = 0; i < SLANG_SHADER_MAX; i++)
- if (uniform->address[i] != ~0) {
- const GLuint *src = (GLuint *) (data);
- GLfloat *dst = (GLfloat *)
- (&impl->_obj.prog.machines[i]->mem[uniform->address[i] / 4]);
- GLuint j;
- GLuint total =
- count * slang_export_data_quant_components(uniform->quant);
-
+ else if (convert_int_to_bool) {
+ const GLint *src = (GLint *) (data);
+ GLfloat *dst = (GLfloat *) dest;
for (j = 0; j < total; j++)
dst[j] = src[j] ? 1.0f : 0.0f;
+ break;
}
- }
- else if (convert_int_to_float) {
- for (i = 0; i < SLANG_SHADER_MAX; i++)
- if (uniform->address[i] != ~0) {
- const GLuint *src = (GLuint *) (data);
- GLfloat *dst = (GLfloat *)
- (&impl->_obj.prog.machines[i]->mem[uniform->address[i] / 4]);
- GLuint j;
- GLuint total =
- count * slang_export_data_quant_components(uniform->quant);
-
+ else if (convert_int_to_float) {
+ const GLint *src = (GLint *) (data);
+ GLfloat *dst = (GLfloat *) dest;
for (j = 0; j < total; j++)
dst[j] = (GLfloat) src[j];
+ break;
}
- }
- else {
- for (i = 0; i < SLANG_SHADER_MAX; i++)
- if (uniform->address[i] != ~0) {
- _mesa_memcpy(&impl->_obj.prog.machines[i]->
- mem[uniform->address[i] / 4], data,
- count *
- slang_export_data_quant_size(uniform->quant));
+ else {
+ _mesa_memcpy(dest, data, total * sizeof(GLfloat));
+ break;
}
+ break;
+ }
}
return GL_TRUE;
}
+/**
+ * Read a uniform variable from program's memory.
+ * \return GL_TRUE for success, GL_FALSE if error
+ */
+static GLboolean
+_program_ReadUniform(struct gl2_program_intf **intf, GLint loc,
+ GLsizei count, GLvoid *data, GLenum type)
+{
+ struct gl2_program_impl *impl = (struct gl2_program_impl *) (intf);
+ const slang_uniform_bindings *uniforms = &impl->_obj.prog.uniforms;
+ const slang_uniform_binding *uniform;
+ GLuint i;
+ GLboolean convert_bool_to_float = GL_FALSE;
+ GLboolean convert_bool_to_int = GL_FALSE;
+ GLboolean convert_float_to_int = GL_FALSE;
+ GLboolean types_match = GL_FALSE;
+
+ if (loc < 0 || loc >= uniforms->count)
+ return GL_FALSE;
+
+ uniform = &uniforms->table[loc];
+
+ if (slang_export_data_quant_struct(uniform->quant))
+ return GL_FALSE;
+
+ switch (slang_export_data_quant_type(uniform->quant)) {
+ case GL_BOOL_ARB:
+ types_match = (type == GL_FLOAT) || (type == GL_INT);
+ if (type == GL_FLOAT)
+ convert_bool_to_float = GL_TRUE;
+ else
+ convert_bool_to_int = GL_TRUE;
+ break;
+ case GL_BOOL_VEC2_ARB:
+ types_match = (type == GL_FLOAT_VEC2_ARB) || (type == GL_INT_VEC2_ARB);
+ if (type == GL_FLOAT_VEC2_ARB)
+ convert_bool_to_float = GL_TRUE;
+ else
+ convert_bool_to_int = GL_TRUE;
+ break;
+ case GL_BOOL_VEC3_ARB:
+ types_match = (type == GL_FLOAT_VEC3_ARB) || (type == GL_INT_VEC3_ARB);
+ if (type == GL_FLOAT_VEC3_ARB)
+ convert_bool_to_float = GL_TRUE;
+ else
+ convert_bool_to_int = GL_TRUE;
+ break;
+ case GL_BOOL_VEC4_ARB:
+ types_match = (type == GL_FLOAT_VEC4_ARB) || (type == GL_INT_VEC4_ARB);
+ if (type == GL_FLOAT_VEC4_ARB)
+ convert_bool_to_float = GL_TRUE;
+ else
+ convert_bool_to_int = GL_TRUE;
+ break;
+ case GL_SAMPLER_1D_ARB:
+ case GL_SAMPLER_2D_ARB:
+ case GL_SAMPLER_3D_ARB:
+ case GL_SAMPLER_CUBE_ARB:
+ case GL_SAMPLER_1D_SHADOW_ARB:
+ case GL_SAMPLER_2D_SHADOW_ARB:
+ types_match = (type == GL_INT);
+ break;
+ default:
+ /* uniform is a float type */
+ types_match = (type == GL_FLOAT);
+ break;
+ }
+
+ if (!types_match)
+ return GL_FALSE;
+
+ switch (type) {
+ case GL_INT:
+ case GL_INT_VEC2_ARB:
+ case GL_INT_VEC3_ARB:
+ case GL_INT_VEC4_ARB:
+ convert_float_to_int = GL_TRUE;
+ break;
+ }
+
+ for (i = 0; i < SLANG_SHADER_MAX; i++) {
+ if (uniform->address[i] != ~0) {
+ /* XXX if bools are really implemented as floats, some of this
+ * could probably be culled out.
+ */
+ const void *source
+ = &impl->_obj.prog.machines[i]->mem[uniform->address[i] / 4];
+ /* total number of values to copy */
+ const GLuint total
+ = count * slang_export_data_quant_components(uniform->quant);
+ GLuint j;
+ if (convert_bool_to_float) {
+ GLfloat *dst = (GLfloat *) (data);
+ const GLfloat *src = (GLfloat *) source;
+ for (j = 0; j < total; j++)
+ dst[j] = src[j] == 0.0 ? 0.0 : 1.0;
+ }
+ else if (convert_bool_to_int) {
+ GLint *dst = (GLint *) (data);
+ const GLfloat *src = (GLfloat *) source;
+ for (j = 0; j < total; j++)
+ dst[j] = src[j] == 0.0 ? 0 : 1;
+ }
+ else if (convert_float_to_int) {
+ GLint *dst = (GLint *) (data);
+ const GLfloat *src = (GLfloat *) source;
+ for (j = 0; j < total; j++)
+ dst[j] = (GLint) src[j];
+ }
+ else {
+ /* no type conversion needed */
+ _mesa_memcpy(data, source, total * sizeof(GLfloat));
+ }
+ break;
+ } /* if */
+ } /* for */
+
+ return GL_TRUE;
+}
+
+
static GLvoid
_program_GetActiveAttrib(struct gl2_program_intf **intf, GLuint index,
GLsizei maxLength, GLsizei * length, GLint * size,
_program_GetActiveUniformCount,
_program_GetUniformLocation,
_program_WriteUniform,
+ _program_ReadUniform,
_program_GetActiveAttrib,
_program_GetActiveAttribMaxLength,
_program_GetActiveAttribCount,
projects / mesa.git / blobdiff