diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_vbo.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_vbo.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_vbo.c b/src/gallium/drivers/r300/r300_vbo.c new file mode 100644 index 0000000000..d8b356a061 --- /dev/null +++ b/src/gallium/drivers/r300/r300_vbo.c @@ -0,0 +1,170 @@ +/* + * Copyright 2009 Maciej Cencora <m.cencora@gmail.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* r300_vbo: Various helpers for emitting vertex buffers. Needs cleanup, + * refactoring, etc. */ + +#include "r300_vbo.h" + +#include "pipe/p_format.h" + +#include "r300_cs.h" +#include "r300_context.h" +#include "r300_state_inlines.h" +#include "r300_reg.h" +#include "r300_winsys.h" + +static INLINE void setup_vertex_attribute(struct r300_vertex_info *vinfo, + struct pipe_vertex_element *vert_elem, + unsigned attr_num) +{ + uint16_t hw_fmt1, hw_fmt2; + + hw_fmt1 = r300_translate_vertex_data_type(vert_elem->src_format) | + (attr_num << R300_DST_VEC_LOC_SHIFT); + hw_fmt2 = r300_translate_vertex_data_swizzle(vert_elem->src_format); + + if (attr_num % 2 == 0) + { + vinfo->vap_prog_stream_cntl[attr_num >> 1] = hw_fmt1; + vinfo->vap_prog_stream_cntl_ext[attr_num >> 1] = hw_fmt2; + } + else + { + vinfo->vap_prog_stream_cntl[attr_num >> 1] |= hw_fmt1 << 16; + vinfo->vap_prog_stream_cntl_ext[attr_num >> 1] |= hw_fmt2 << 16; + } +} + +static void finish_vertex_attribs_setup(struct r300_vertex_info *vinfo, + unsigned attribs_num) +{ + uint32_t last_vec_bit = (attribs_num % 2 == 0) ? + (R300_LAST_VEC << 16) : R300_LAST_VEC; + + assert(attribs_num > 0 && attribs_num <= 16); + vinfo->vap_prog_stream_cntl[(attribs_num - 1) >> 1] |= last_vec_bit; +} + +void setup_vertex_attributes(struct r300_context *r300) +{ + struct pipe_vertex_element *vert_elem; + int i; + + for (i = 0; i < r300->aos_count; i++) { + vert_elem = &r300->vertex_element[i]; + setup_vertex_attribute(r300->vertex_info, vert_elem, i); + } + + finish_vertex_attribs_setup(r300->vertex_info, r300->aos_count); +} + +/* XXX WTF are these doing? */ +static void setup_vertex_array(struct r300_context *r300, struct pipe_vertex_element *element) +{ +} + +static void finish_vertex_arrays_setup(struct r300_context *r300) +{ +} + +/* XXX move/integrate this with the checks in r300_state_inlines */ +static boolean format_is_supported(enum pipe_format format, int nr_components) +{ + if (pf_layout(format) != PIPE_FORMAT_LAYOUT_RGBAZS) + return FALSE; + + if ((pf_size_x(format) != pf_size_y(format)) || + (pf_size_x(format) != pf_size_z(format)) || + (pf_size_x(format) != pf_size_w(format))) + return FALSE; + + /* Following should be supported as long as stride is 4 bytes aligned */ + if (pf_size_x(format) != 1 && nr_components != 4) + return FALSE; + + if (pf_size_x(format) != 2 && !(nr_components == 2 || nr_components == 4)) + return FALSE; + + if (pf_size_x(format) == 3 || pf_size_x(format) > 4) + return FALSE; + + return TRUE; +} + +static INLINE int get_buffer_offset(struct r300_context *r300, + unsigned int buf_nr, + unsigned int elem_offset) +{ + return r300->vertex_buffer[buf_nr].buffer_offset + elem_offset; +} + +/** + */ +static void setup_vertex_buffers(struct r300_context *r300) +{ + struct pipe_vertex_element *vert_elem; + int i; + + for (i = 0; i < r300->aos_count; i++) + { + vert_elem = &r300->vertex_element[i]; + if (!format_is_supported(vert_elem->src_format, + vert_elem->nr_components)) { + /* XXX use translate module to convert the data */ + assert(0); + /* + struct pipe_buffer *buf; + const unsigned int max_index = r300->vertex_buffers[vert_elem->vertex_buffer_index].max_index; + buf = pipe_buffer_create(r300->context.screen, 4, usage, vert_elem->nr_components * max_index * sizeof(float)); + */ + } + + if (get_buffer_offset(r300, + vert_elem->vertex_buffer_index, + vert_elem->src_offset) % 4) { + /* XXX need to align buffer */ + assert(0); + } + setup_vertex_array(r300, vert_elem); + } + + finish_vertex_arrays_setup(r300); +} + +void setup_index_buffer(struct r300_context *r300, + struct pipe_buffer* indexBuffer, + unsigned indexSize) +{ + /* XXX I call BS; why is this different from the assert in r300_render? */ + assert(indexSize = 2); + + if (!r300->winsys->add_buffer(r300->winsys, indexBuffer, + RADEON_GEM_DOMAIN_GTT, 0)) { + assert(0); + } + + if (!r300->winsys->validate(r300->winsys)) { + assert(0); + } +} |