diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_vbo.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_vbo.c | 226 |
1 files changed, 226 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 00000000000..e0326412865 --- /dev/null +++ b/src/gallium/drivers/r300/r300_vbo.c @@ -0,0 +1,226 @@ +/* + * Copyright 2009 Maciej Cencora <[email protected]> + * + * 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. + */ + +#include "r300_vbo.h" + +#include "pipe/p_format.h" + +#include "r300_cs.h" +#include "r300_context.h" +#include "r300_reg.h" +#include "r300_winsys.h" + +static void translate_vertex_format(enum pipe_format format, + unsigned nr_comps, + unsigned component_size, + unsigned dst_loc, + uint32_t *hw_fmt1, + uint32_t *hw_fmt2) +{ + uint32_t fmt1 = 0; + + switch (pf_type(format)) + { + case PIPE_FORMAT_TYPE_FLOAT: + assert(component_size == 4); + fmt1 = R300_DATA_TYPE_FLOAT_1 + nr_comps - 1; + break; + case PIPE_FORMAT_TYPE_UNORM: + case PIPE_FORMAT_TYPE_SNORM: + case PIPE_FORMAT_TYPE_USCALED: + case PIPE_FORMAT_TYPE_SSCALED: + if (component_size == 1) + { + assert(nr_comps == 4); + fmt1 = R300_DATA_TYPE_BYTE; + } + else if (component_size == 2) + { + if (nr_comps == 2) + fmt1 = R300_DATA_TYPE_SHORT_2; + else if (nr_comps == 4) + fmt1 = R300_DATA_TYPE_SHORT_4; + else + assert(0); + } + else + { + assert(0); + } + + if (pf_type(format) == PIPE_FORMAT_TYPE_SNORM) + { + fmt1 |= R300_SIGNED; + } + else if (pf_type(format) == PIPE_FORMAT_TYPE_SSCALED) + { + fmt1 |= R300_SIGNED; + fmt1 |= R300_NORMALIZE; + } + else if (pf_type(format) == PIPE_FORMAT_TYPE_USCALED) + { + fmt1 |= R300_NORMALIZE; + } + break; + default: + assert(0); + break; + } + + *hw_fmt1 = fmt1 | (dst_loc << R300_DST_VEC_LOC_SHIFT); + *hw_fmt2 = (pf_swizzle_x(format) << R300_SWIZZLE_SELECT_X_SHIFT) | + (pf_swizzle_y(format) << R300_SWIZZLE_SELECT_Y_SHIFT) | + (pf_swizzle_z(format) << R300_SWIZZLE_SELECT_Z_SHIFT) | + (pf_swizzle_w(format) << R300_SWIZZLE_SELECT_W_SHIFT) | + (0xf << R300_WRITE_ENA_SHIFT); +} + +static INLINE void setup_vertex_attribute(struct r300_vertex_info *vinfo, + struct pipe_vertex_element *vert_elem, + unsigned attr_num) +{ + uint32_t hw_fmt1, hw_fmt2; + translate_vertex_format(vert_elem->src_format, + vert_elem->nr_components, + pf_size_x(vert_elem->src_format), + attr_num, + &hw_fmt1, + &hw_fmt2); + + 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) +{ + for (int i=0; i<r300->aos_count; i++) + { + struct pipe_vertex_element *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); +} + +static void setup_vertex_array(struct r300_context *r300, struct pipe_vertex_element *element) +{ +} + +static void finish_vertex_arrays_setup(struct r300_context *r300) +{ +} + +static bool 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) +{ + for (int i=0; i<r300->aos_count; i++) + { + struct pipe_vertex_element *vert_elem = &r300->vertex_element[i]; + if (!format_is_supported(vert_elem->src_format, vert_elem->nr_components)) + { + assert(0); + /* use translate module to convert the data */ + /* + 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 != 0) + { + /* 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) +{ + 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); + } +} + |