From 88858e046888d0bcb763537adc74a64e564678df Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Mon, 28 Jan 2008 12:40:29 +0000 Subject: gallium: add a couple of hardwired vertex fetch functions --- src/mesa/pipe/draw/draw_vertex_fetch.c | 150 ++++++++++++++++++++++++++++----- 1 file changed, 128 insertions(+), 22 deletions(-) (limited to 'src/mesa/pipe/draw/draw_vertex_fetch.c') diff --git a/src/mesa/pipe/draw/draw_vertex_fetch.c b/src/mesa/pipe/draw/draw_vertex_fetch.c index 143acdd3b4..afdf1971d2 100644 --- a/src/mesa/pipe/draw/draw_vertex_fetch.c +++ b/src/mesa/pipe/draw/draw_vertex_fetch.c @@ -320,42 +320,101 @@ transpose_4x4( float *out, const float *in ) } - -void draw_update_vertex_fetch( struct draw_context *draw ) + +static void fetch_xyz_rgb( struct draw_context *draw, + struct tgsi_exec_machine *machine, + const unsigned *elts, + unsigned count ) { - unsigned nr_attrs, i; + assert(count <= 4); // _mesa_printf("%s\n", __FUNCTION__); - - /* this may happend during context init */ - if (!draw->vertex_shader) - return; - nr_attrs = draw->vertex_shader->state->num_inputs; + /* loop over vertex attributes (vertex shader inputs) + */ - for (i = 0; i < nr_attrs; i++) { - unsigned buf = draw->vertex_element[i].vertex_buffer_index; - enum pipe_format format = draw->vertex_element[i].src_format; + const unsigned *pitch = draw->vertex_fetch.pitch; + const ubyte **src = draw->vertex_fetch.src_ptr; + int i; + + for (i = 0; i < 4; i++) { + { + const float *in = (const float *)(src[0] + elts[i] * pitch[0]); + float *out = &machine->Inputs[0].xyzw[0].f[i]; + out[0] = in[0]; + out[4] = in[1]; + out[8] = in[2]; + out[12] = 1.0f; + } + + { + const float *in = (const float *)(src[1] + elts[i] * pitch[1]); + float *out = &machine->Inputs[1].xyzw[0].f[i]; + out[0] = in[0]; + out[4] = in[1]; + out[8] = in[2]; + out[12] = 1.0f; + } + } +} - draw->vertex_fetch.src_ptr[i] = (const ubyte *) draw->user.vbuffer[buf] + - draw->vertex_buffer[buf].buffer_offset + - draw->vertex_element[i].src_offset; - draw->vertex_fetch.pitch[i] = draw->vertex_buffer[buf].pitch; - draw->vertex_fetch.fetch[i] = get_fetch_func( format ); - } - draw->vertex_fetch.nr_attrs = nr_attrs; + +static void fetch_xyz_rgb_st( struct draw_context *draw, + struct tgsi_exec_machine *machine, + const unsigned *elts, + unsigned count ) +{ + assert(count <= 4); + + /* loop over vertex attributes (vertex shader inputs) + */ + + const unsigned *pitch = draw->vertex_fetch.pitch; + const ubyte **src = draw->vertex_fetch.src_ptr; + int i; + + for (i = 0; i < 4; i++) { + { + const float *in = (const float *)(src[0] + elts[i] * pitch[0]); + float *out = &machine->Inputs[0].xyzw[0].f[i]; + out[0] = in[0]; + out[4] = in[1]; + out[8] = in[2]; + out[12] = 1.0f; + } + + { + const float *in = (const float *)(src[1] + elts[i] * pitch[1]); + float *out = &machine->Inputs[1].xyzw[0].f[i]; + out[0] = in[0]; + out[4] = in[1]; + out[8] = in[2]; + out[12] = 1.0f; + } + + { + const float *in = (const float *)(src[2] + elts[i] * pitch[2]); + float *out = &machine->Inputs[1].xyzw[0].f[i]; + out[0] = in[0]; + out[4] = in[1]; + out[8] = 0.0f; + out[12] = 1.0f; + } + } } + + /** * Fetch vertex attributes for 'count' vertices. */ -void draw_vertex_fetch( struct draw_context *draw, - struct tgsi_exec_machine *machine, - const unsigned *elts, - unsigned count ) +static void generic_vertex_fetch( struct draw_context *draw, + struct tgsi_exec_machine *machine, + const unsigned *elts, + unsigned count ) { unsigned nr_attrs = draw->vertex_fetch.nr_attrs; unsigned attr; @@ -402,3 +461,50 @@ void draw_vertex_fetch( struct draw_context *draw, } } + + +void draw_update_vertex_fetch( struct draw_context *draw ) +{ + unsigned nr_attrs, i; + +// _mesa_printf("%s\n", __FUNCTION__); + + /* this may happend during context init */ + if (!draw->vertex_shader) + return; + + nr_attrs = draw->vertex_shader->state->num_inputs; + + for (i = 0; i < nr_attrs; i++) { + unsigned buf = draw->vertex_element[i].vertex_buffer_index; + enum pipe_format format = draw->vertex_element[i].src_format; + + draw->vertex_fetch.src_ptr[i] = (const ubyte *) draw->user.vbuffer[buf] + + draw->vertex_buffer[buf].buffer_offset + + draw->vertex_element[i].src_offset; + + draw->vertex_fetch.pitch[i] = draw->vertex_buffer[buf].pitch; + draw->vertex_fetch.fetch[i] = get_fetch_func( format ); + } + + draw->vertex_fetch.nr_attrs = nr_attrs; + + draw->vertex_fetch.fetch_func = generic_vertex_fetch; + + switch (nr_attrs) { + case 2: + if (draw->vertex_element[0].src_format == PIPE_FORMAT_R32G32B32_FLOAT && + draw->vertex_element[1].src_format == PIPE_FORMAT_R32G32B32_FLOAT) + draw->vertex_fetch.fetch_func = fetch_xyz_rgb; + break; + case 3: + if (draw->vertex_element[0].src_format == PIPE_FORMAT_R32G32B32_FLOAT && + draw->vertex_element[1].src_format == PIPE_FORMAT_R32G32B32_FLOAT && + draw->vertex_element[1].src_format == PIPE_FORMAT_R32G32_FLOAT) + draw->vertex_fetch.fetch_func = fetch_xyz_rgb_st; + break; + default: + break; + } + +} -- cgit v1.2.3