diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs.cpp | 45 |
1 files changed, 40 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 35bb28914e..7119f971f8 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -1177,6 +1177,7 @@ fs_visitor::emit_texture_gen5(ir_texture *ir, fs_reg dst, fs_reg coordinate) void fs_visitor::visit(ir_texture *ir) { + int sampler; fs_inst *inst = NULL; ir->coordinate->accept(this); @@ -1185,6 +1186,44 @@ fs_visitor::visit(ir_texture *ir) /* Should be lowered by do_lower_texture_projection */ assert(!ir->projector); + sampler = _mesa_get_sampler_uniform_value(ir->sampler, + ctx->Shader.CurrentProgram, + &brw->fragment_program->Base); + sampler = c->fp->program.Base.SamplerUnits[sampler]; + + /* The 965 requires the EU to do the normalization of GL rectangle + * texture coordinates. We use the program parameter state + * tracking to get the scaling factor. + */ + if (ir->sampler->type->sampler_dimensionality == GLSL_SAMPLER_DIM_RECT) { + struct gl_program_parameter_list *params = c->fp->program.Base.Parameters; + int tokens[STATE_LENGTH] = { + STATE_INTERNAL, + STATE_TEXRECT_SCALE, + sampler, + 0, + 0 + }; + + fs_reg scale_x = fs_reg(UNIFORM, c->prog_data.nr_params); + fs_reg scale_y = fs_reg(UNIFORM, c->prog_data.nr_params + 1); + GLuint index = _mesa_add_state_reference(params, + (gl_state_index *)tokens); + float *vec_values = this->fp->Base.Parameters->ParameterValues[index]; + + c->prog_data.param[c->prog_data.nr_params++] = &vec_values[0]; + c->prog_data.param[c->prog_data.nr_params++] = &vec_values[1]; + + fs_reg dst = fs_reg(this, ir->coordinate->type); + fs_reg src = coordinate; + coordinate = dst; + + emit(fs_inst(BRW_OPCODE_MUL, dst, src, scale_x)); + dst.reg_offset++; + src.reg_offset++; + emit(fs_inst(BRW_OPCODE_MUL, dst, src, scale_y)); + } + /* Writemasking doesn't eliminate channels on SIMD8 texture * samples, so don't worry about them. */ @@ -1196,11 +1235,7 @@ fs_visitor::visit(ir_texture *ir) inst = emit_texture_gen5(ir, dst, coordinate); } - inst->sampler = - _mesa_get_sampler_uniform_value(ir->sampler, - ctx->Shader.CurrentProgram, - &brw->fragment_program->Base); - inst->sampler = c->fp->program.Base.SamplerUnits[inst->sampler]; + inst->sampler = sampler; this->result = dst; |