| /************************************************************************** |
| * |
| * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * All Rights Reserved. |
| * |
| * 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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. |
| * |
| **************************************************************************/ |
| |
| /* |
| * Authors: |
| * Keith Whitwell <keith@tungstengraphics.com> |
| */ |
| |
| |
| #include "pipe/p_context.h" |
| #include "util/u_memory.h" |
| #include "util/u_math.h" |
| #include "util/u_cpu_detect.h" |
| #include "util/u_inlines.h" |
| #include "draw_context.h" |
| #include "draw_vs.h" |
| #include "draw_gs.h" |
| |
| #if HAVE_LLVM |
| #include "gallivm/lp_bld_init.h" |
| #include "gallivm/lp_bld_limits.h" |
| #include "draw_llvm.h" |
| |
| static boolean |
| draw_get_option_use_llvm(void) |
| { |
| static boolean first = TRUE; |
| static boolean value; |
| if (first) { |
| first = FALSE; |
| value = debug_get_bool_option("DRAW_USE_LLVM", TRUE); |
| |
| #ifdef PIPE_ARCH_X86 |
| util_cpu_detect(); |
| /* require SSE2 due to LLVM PR6960. */ |
| if (!util_cpu_caps.has_sse2) |
| value = FALSE; |
| #endif |
| } |
| return value; |
| } |
| #endif |
| |
| |
| /** |
| * Create new draw module context with gallivm state for LLVM JIT. |
| */ |
| static struct draw_context * |
| draw_create_context(struct pipe_context *pipe, boolean try_llvm) |
| { |
| struct draw_context *draw = CALLOC_STRUCT( draw_context ); |
| if (draw == NULL) |
| goto err_out; |
| |
| #if HAVE_LLVM |
| if (try_llvm && draw_get_option_use_llvm()) { |
| draw->llvm = draw_llvm_create(draw); |
| if (!draw->llvm) |
| goto err_destroy; |
| } |
| #endif |
| |
| draw->pipe = pipe; |
| |
| if (!draw_init(draw)) |
| goto err_destroy; |
| |
| return draw; |
| |
| err_destroy: |
| draw_destroy( draw ); |
| err_out: |
| return NULL; |
| } |
| |
| |
| /** |
| * Create new draw module context, with LLVM JIT. |
| */ |
| struct draw_context * |
| draw_create(struct pipe_context *pipe) |
| { |
| return draw_create_context(pipe, TRUE); |
| } |
| |
| |
| /** |
| * Create a new draw context, without LLVM JIT. |
| */ |
| struct draw_context * |
| draw_create_no_llvm(struct pipe_context *pipe) |
| { |
| return draw_create_context(pipe, FALSE); |
| } |
| |
| |
| boolean draw_init(struct draw_context *draw) |
| { |
| /* |
| * Note that several functions compute the clipmask of the predefined |
| * formats with hardcoded formulas instead of using these. So modifications |
| * here must be reflected there too. |
| */ |
| |
| ASSIGN_4V( draw->plane[0], -1, 0, 0, 1 ); |
| ASSIGN_4V( draw->plane[1], 1, 0, 0, 1 ); |
| ASSIGN_4V( draw->plane[2], 0, -1, 0, 1 ); |
| ASSIGN_4V( draw->plane[3], 0, 1, 0, 1 ); |
| ASSIGN_4V( draw->plane[4], 0, 0, 1, 1 ); /* yes these are correct */ |
| ASSIGN_4V( draw->plane[5], 0, 0, -1, 1 ); /* mesa's a bit wonky */ |
| draw->clip_xy = TRUE; |
| draw->clip_z = TRUE; |
| |
| draw->pt.user.planes = (float (*) [DRAW_TOTAL_CLIP_PLANES][4]) &(draw->plane[0]); |
| |
| if (!draw_pipeline_init( draw )) |
| return FALSE; |
| |
| if (!draw_pt_init( draw )) |
| return FALSE; |
| |
| if (!draw_vs_init( draw )) |
| return FALSE; |
| |
| if (!draw_gs_init( draw )) |
| return FALSE; |
| |
| draw->quads_always_flatshade_last = !draw->pipe->screen->get_param( |
| draw->pipe->screen, PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION); |
| |
| return TRUE; |
| } |
| |
| |
| void draw_destroy( struct draw_context *draw ) |
| { |
| struct pipe_context *pipe; |
| int i, j; |
| |
| if (!draw) |
| return; |
| |
| pipe = draw->pipe; |
| |
| /* free any rasterizer CSOs that we may have created. |
| */ |
| for (i = 0; i < 2; i++) { |
| for (j = 0; j < 2; j++) { |
| if (draw->rasterizer_no_cull[i][j]) { |
| pipe->delete_rasterizer_state(pipe, draw->rasterizer_no_cull[i][j]); |
| } |
| } |
| } |
| |
| for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { |
| pipe_resource_reference(&draw->pt.vertex_buffer[i].buffer, NULL); |
| } |
| |
| /* Not so fast -- we're just borrowing this at the moment. |
| * |
| if (draw->render) |
| draw->render->destroy( draw->render ); |
| */ |
| |
| draw_pipeline_destroy( draw ); |
| draw_pt_destroy( draw ); |
| draw_vs_destroy( draw ); |
| draw_gs_destroy( draw ); |
| #ifdef HAVE_LLVM |
| if (draw->llvm) |
| draw_llvm_destroy( draw->llvm ); |
| #endif |
| |
| FREE( draw ); |
| } |
| |
| |
| |
| void draw_flush( struct draw_context *draw ) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_BACKEND ); |
| } |
| |
| |
| /** |
| * Specify the Minimum Resolvable Depth factor for polygon offset. |
| * This factor potentially depends on the number of Z buffer bits, |
| * the rasterization algorithm and the arithmetic performed on Z |
| * values between vertex shading and rasterization. It will vary |
| * from one driver to another. |
| */ |
| void draw_set_mrd(struct draw_context *draw, double mrd) |
| { |
| draw->mrd = mrd; |
| } |
| |
| |
| static void update_clip_flags( struct draw_context *draw ) |
| { |
| draw->clip_xy = !draw->driver.bypass_clip_xy; |
| draw->guard_band_xy = (!draw->driver.bypass_clip_xy && |
| draw->driver.guard_band_xy); |
| draw->clip_z = (!draw->driver.bypass_clip_z && |
| draw->rasterizer && draw->rasterizer->depth_clip); |
| draw->clip_user = draw->rasterizer && |
| draw->rasterizer->clip_plane_enable != 0; |
| } |
| |
| /** |
| * Register new primitive rasterization/rendering state. |
| * This causes the drawing pipeline to be rebuilt. |
| */ |
| void draw_set_rasterizer_state( struct draw_context *draw, |
| const struct pipe_rasterizer_state *raster, |
| void *rast_handle ) |
| { |
| if (!draw->suspend_flushing) { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| |
| draw->rasterizer = raster; |
| draw->rast_handle = rast_handle; |
| update_clip_flags(draw); |
| } |
| } |
| |
| /* With a little more work, llvmpipe will be able to turn this off and |
| * do its own x/y clipping. |
| * |
| * Some hardware can turn off clipping altogether - in particular any |
| * hardware with a TNL unit can do its own clipping, even if it is |
| * relying on the draw module for some other reason. |
| */ |
| void draw_set_driver_clipping( struct draw_context *draw, |
| boolean bypass_clip_xy, |
| boolean bypass_clip_z, |
| boolean guard_band_xy) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| |
| draw->driver.bypass_clip_xy = bypass_clip_xy; |
| draw->driver.bypass_clip_z = bypass_clip_z; |
| draw->driver.guard_band_xy = guard_band_xy; |
| update_clip_flags(draw); |
| } |
| |
| |
| /** |
| * Plug in the primitive rendering/rasterization stage (which is the last |
| * stage in the drawing pipeline). |
| * This is provided by the device driver. |
| */ |
| void draw_set_rasterize_stage( struct draw_context *draw, |
| struct draw_stage *stage ) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| |
| draw->pipeline.rasterize = stage; |
| } |
| |
| |
| /** |
| * Set the draw module's clipping state. |
| */ |
| void draw_set_clip_state( struct draw_context *draw, |
| const struct pipe_clip_state *clip ) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| |
| memcpy(&draw->plane[6], clip->ucp, sizeof(clip->ucp)); |
| } |
| |
| |
| /** |
| * Set the draw module's viewport state. |
| */ |
| void draw_set_viewport_state( struct draw_context *draw, |
| const struct pipe_viewport_state *viewport ) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| draw->viewport = *viewport; /* struct copy */ |
| draw->identity_viewport = (viewport->scale[0] == 1.0f && |
| viewport->scale[1] == 1.0f && |
| viewport->scale[2] == 1.0f && |
| viewport->scale[3] == 1.0f && |
| viewport->translate[0] == 0.0f && |
| viewport->translate[1] == 0.0f && |
| viewport->translate[2] == 0.0f && |
| viewport->translate[3] == 0.0f); |
| |
| draw_vs_set_viewport( draw, viewport ); |
| } |
| |
| |
| |
| void |
| draw_set_vertex_buffers(struct draw_context *draw, |
| unsigned count, |
| const struct pipe_vertex_buffer *buffers) |
| { |
| assert(count <= PIPE_MAX_ATTRIBS); |
| |
| util_copy_vertex_buffers(draw->pt.vertex_buffer, |
| &draw->pt.nr_vertex_buffers, |
| buffers, count); |
| } |
| |
| |
| void |
| draw_set_vertex_elements(struct draw_context *draw, |
| unsigned count, |
| const struct pipe_vertex_element *elements) |
| { |
| assert(count <= PIPE_MAX_ATTRIBS); |
| |
| /* We could improve this by only flushing the frontend and the fetch part |
| * of the middle. This would avoid recalculating the emit keys.*/ |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| |
| memcpy(draw->pt.vertex_element, elements, count * sizeof(elements[0])); |
| draw->pt.nr_vertex_elements = count; |
| } |
| |
| |
| /** |
| * Tell drawing context where to find mapped vertex buffers. |
| */ |
| void |
| draw_set_mapped_vertex_buffer(struct draw_context *draw, |
| unsigned attr, const void *buffer) |
| { |
| draw->pt.user.vbuffer[attr] = buffer; |
| } |
| |
| |
| void |
| draw_set_mapped_constant_buffer(struct draw_context *draw, |
| unsigned shader_type, |
| unsigned slot, |
| const void *buffer, |
| unsigned size ) |
| { |
| debug_assert(shader_type == PIPE_SHADER_VERTEX || |
| shader_type == PIPE_SHADER_GEOMETRY); |
| debug_assert(slot < PIPE_MAX_CONSTANT_BUFFERS); |
| |
| switch (shader_type) { |
| case PIPE_SHADER_VERTEX: |
| draw->pt.user.vs_constants[slot] = buffer; |
| draw->pt.user.vs_constants_size[slot] = size; |
| draw_vs_set_constants(draw, slot, buffer, size); |
| break; |
| case PIPE_SHADER_GEOMETRY: |
| draw->pt.user.gs_constants[slot] = buffer; |
| draw->pt.user.gs_constants_size[slot] = size; |
| draw_gs_set_constants(draw, slot, buffer, size); |
| break; |
| default: |
| assert(0 && "invalid shader type in draw_set_mapped_constant_buffer"); |
| } |
| } |
| |
| |
| /** |
| * Tells the draw module to draw points with triangles if their size |
| * is greater than this threshold. |
| */ |
| void |
| draw_wide_point_threshold(struct draw_context *draw, float threshold) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| draw->pipeline.wide_point_threshold = threshold; |
| } |
| |
| |
| /** |
| * Should the draw module handle point->quad conversion for drawing sprites? |
| */ |
| void |
| draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| draw->pipeline.wide_point_sprites = draw_sprite; |
| } |
| |
| |
| /** |
| * Tells the draw module to draw lines with triangles if their width |
| * is greater than this threshold. |
| */ |
| void |
| draw_wide_line_threshold(struct draw_context *draw, float threshold) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| draw->pipeline.wide_line_threshold = roundf(threshold); |
| } |
| |
| |
| /** |
| * Tells the draw module whether or not to implement line stipple. |
| */ |
| void |
| draw_enable_line_stipple(struct draw_context *draw, boolean enable) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| draw->pipeline.line_stipple = enable; |
| } |
| |
| |
| /** |
| * Tells draw module whether to convert points to quads for sprite mode. |
| */ |
| void |
| draw_enable_point_sprites(struct draw_context *draw, boolean enable) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| draw->pipeline.point_sprite = enable; |
| } |
| |
| |
| void |
| draw_set_force_passthrough( struct draw_context *draw, boolean enable ) |
| { |
| draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); |
| draw->force_passthrough = enable; |
| } |
| |
| |
| |
| /** |
| * Allocate an extra vertex/geometry shader vertex attribute, if it doesn't |
| * exist already. |
| * |
| * This is used by some of the optional draw module stages such |
| * as wide_point which may need to allocate additional generic/texcoord |
| * attributes. |
| */ |
| int |
| draw_alloc_extra_vertex_attrib(struct draw_context *draw, |
| uint semantic_name, uint semantic_index) |
| { |
| int slot; |
| uint num_outputs; |
| uint n; |
| |
| slot = draw_find_shader_output(draw, semantic_name, semantic_index); |
| if (slot > 0) { |
| return slot; |
| } |
| |
| num_outputs = draw_current_shader_outputs(draw); |
| n = draw->extra_shader_outputs.num; |
| |
| assert(n < Elements(draw->extra_shader_outputs.semantic_name)); |
| |
| draw->extra_shader_outputs.semantic_name[n] = semantic_name; |
| draw->extra_shader_outputs.semantic_index[n] = semantic_index; |
| draw->extra_shader_outputs.slot[n] = num_outputs + n; |
| draw->extra_shader_outputs.num++; |
| |
| return draw->extra_shader_outputs.slot[n]; |
| } |
| |
| |
| /** |
| * Remove all extra vertex attributes that were allocated with |
| * draw_alloc_extra_vertex_attrib(). |
| */ |
| void |
| draw_remove_extra_vertex_attribs(struct draw_context *draw) |
| { |
| draw->extra_shader_outputs.num = 0; |
| } |
| |
| |
| /** |
| * If a geometry shader is present, return its info, else the vertex shader's |
| * info. |
| */ |
| struct tgsi_shader_info * |
| draw_get_shader_info(const struct draw_context *draw) |
| { |
| |
| if (draw->gs.geometry_shader) { |
| return &draw->gs.geometry_shader->info; |
| } else { |
| return &draw->vs.vertex_shader->info; |
| } |
| } |
| |
| |
| /** |
| * Ask the draw module for the location/slot of the given vertex attribute in |
| * a post-transformed vertex. |
| * |
| * With this function, drivers that use the draw module should have no reason |
| * to track the current vertex/geometry shader. |
| * |
| * Note that the draw module may sometimes generate vertices with extra |
| * attributes (such as texcoords for AA lines). The driver can call this |
| * function to find those attributes. |
| * |
| * Zero is returned if the attribute is not found since this is |
| * a don't care / undefined situtation. Returning -1 would be a bit more |
| * work for the drivers. |
| */ |
| int |
| draw_find_shader_output(const struct draw_context *draw, |
| uint semantic_name, uint semantic_index) |
| { |
| const struct tgsi_shader_info *info = draw_get_shader_info(draw); |
| uint i; |
| |
| for (i = 0; i < info->num_outputs; i++) { |
| if (info->output_semantic_name[i] == semantic_name && |
| info->output_semantic_index[i] == semantic_index) |
| return i; |
| } |
| |
| /* Search the extra vertex attributes */ |
| for (i = 0; i < draw->extra_shader_outputs.num; i++) { |
| if (draw->extra_shader_outputs.semantic_name[i] == semantic_name && |
| draw->extra_shader_outputs.semantic_index[i] == semantic_index) { |
| return draw->extra_shader_outputs.slot[i]; |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| /** |
| * Return total number of the shader outputs. This function is similar to |
| * draw_current_shader_outputs() but this function also counts any extra |
| * vertex/geometry output attributes that may be filled in by some draw |
| * stages (such as AA point, AA line). |
| * |
| * If geometry shader is present, its output will be returned, |
| * if not vertex shader is used. |
| */ |
| uint |
| draw_num_shader_outputs(const struct draw_context *draw) |
| { |
| const struct tgsi_shader_info *info = draw_get_shader_info(draw); |
| uint count; |
| |
| count = info->num_outputs; |
| count += draw->extra_shader_outputs.num; |
| |
| return count; |
| } |
| |
| |
| /** |
| * Provide TGSI sampler objects for vertex/geometry shaders that use |
| * texture fetches. This state only needs to be set once per context. |
| * This might only be used by software drivers for the time being. |
| */ |
| void |
| draw_texture_samplers(struct draw_context *draw, |
| uint shader, |
| uint num_samplers, |
| struct tgsi_sampler **samplers) |
| { |
| if (shader == PIPE_SHADER_VERTEX) { |
| draw->vs.tgsi.num_samplers = num_samplers; |
| draw->vs.tgsi.samplers = samplers; |
| } else { |
| debug_assert(shader == PIPE_SHADER_GEOMETRY); |
| draw->gs.tgsi.num_samplers = num_samplers; |
| draw->gs.tgsi.samplers = samplers; |
| } |
| } |
| |
| |
| |
| |
| void draw_set_render( struct draw_context *draw, |
| struct vbuf_render *render ) |
| { |
| draw->render = render; |
| } |
| |
| |
| /** |
| * Tell the draw module where vertex indexes/elements are located, and |
| * their size (in bytes). |
| * |
| * Note: the caller must apply the pipe_index_buffer::offset value to |
| * the address. The draw module doesn't do that. |
| */ |
| void |
| draw_set_indexes(struct draw_context *draw, |
| const void *elements, unsigned elem_size) |
| { |
| assert(elem_size == 0 || |
| elem_size == 1 || |
| elem_size == 2 || |
| elem_size == 4); |
| draw->pt.user.elts = elements; |
| draw->pt.user.eltSizeIB = elem_size; |
| } |
| |
| |
| /* Revamp me please: |
| */ |
| void draw_do_flush( struct draw_context *draw, unsigned flags ) |
| { |
| if (!draw->suspend_flushing) |
| { |
| assert(!draw->flushing); /* catch inadvertant recursion */ |
| |
| draw->flushing = TRUE; |
| |
| draw_pipeline_flush( draw, flags ); |
| |
| draw_pt_flush( draw, flags ); |
| |
| draw->flushing = FALSE; |
| } |
| } |
| |
| |
| /** |
| * Return the number of output attributes produced by the geometry |
| * shader, if present. If no geometry shader, return the number of |
| * outputs from the vertex shader. |
| * \sa draw_num_shader_outputs |
| */ |
| uint |
| draw_current_shader_outputs(const struct draw_context *draw) |
| { |
| if (draw->gs.geometry_shader) |
| return draw->gs.num_gs_outputs; |
| return draw->vs.num_vs_outputs; |
| } |
| |
| |
| /** |
| * Return the index of the shader output which will contain the |
| * vertex position. |
| */ |
| uint |
| draw_current_shader_position_output(const struct draw_context *draw) |
| { |
| if (draw->gs.geometry_shader) |
| return draw->gs.position_output; |
| return draw->vs.position_output; |
| } |
| |
| |
| /** |
| * Return the index of the shader output which will contain the |
| * vertex position. |
| */ |
| uint |
| draw_current_shader_clipvertex_output(const struct draw_context *draw) |
| { |
| return draw->vs.clipvertex_output; |
| } |
| |
| uint |
| draw_current_shader_clipdistance_output(const struct draw_context *draw, int index) |
| { |
| return draw->vs.clipdistance_output[index]; |
| } |
| |
| /** |
| * Return a pointer/handle for a driver/CSO rasterizer object which |
| * disabled culling, stippling, unfilled tris, etc. |
| * This is used by some pipeline stages (such as wide_point, aa_line |
| * and aa_point) which convert points/lines into triangles. In those |
| * cases we don't want to accidentally cull the triangles. |
| * |
| * \param scissor should the rasterizer state enable scissoring? |
| * \param flatshade should the rasterizer state use flat shading? |
| * \return rasterizer CSO handle |
| */ |
| void * |
| draw_get_rasterizer_no_cull( struct draw_context *draw, |
| boolean scissor, |
| boolean flatshade ) |
| { |
| if (!draw->rasterizer_no_cull[scissor][flatshade]) { |
| /* create now */ |
| struct pipe_context *pipe = draw->pipe; |
| struct pipe_rasterizer_state rast; |
| |
| memset(&rast, 0, sizeof(rast)); |
| rast.scissor = scissor; |
| rast.flatshade = flatshade; |
| rast.front_ccw = 1; |
| rast.gl_rasterization_rules = draw->rasterizer->gl_rasterization_rules; |
| |
| draw->rasterizer_no_cull[scissor][flatshade] = |
| pipe->create_rasterizer_state(pipe, &rast); |
| } |
| return draw->rasterizer_no_cull[scissor][flatshade]; |
| } |
| |
| void |
| draw_set_mapped_so_targets(struct draw_context *draw, |
| int num_targets, |
| struct draw_so_target *targets[PIPE_MAX_SO_BUFFERS]) |
| { |
| int i; |
| |
| for (i = 0; i < num_targets; i++) |
| draw->so.targets[i] = targets[i]; |
| for (i = num_targets; i < PIPE_MAX_SO_BUFFERS; i++) |
| draw->so.targets[i] = NULL; |
| |
| draw->so.num_targets = num_targets; |
| } |
| |
| void |
| draw_set_mapped_so_buffers(struct draw_context *draw, |
| void *buffers[PIPE_MAX_SO_BUFFERS], |
| unsigned num_buffers) |
| { |
| } |
| |
| void |
| draw_set_so_state(struct draw_context *draw, |
| struct pipe_stream_output_info *state) |
| { |
| memcpy(&draw->so.state, |
| state, |
| sizeof(struct pipe_stream_output_info)); |
| } |
| |
| void |
| draw_set_sampler_views(struct draw_context *draw, |
| unsigned shader_stage, |
| struct pipe_sampler_view **views, |
| unsigned num) |
| { |
| unsigned i; |
| |
| debug_assert(shader_stage < PIPE_SHADER_TYPES); |
| debug_assert(num <= PIPE_MAX_SAMPLERS); |
| |
| for (i = 0; i < num; ++i) |
| draw->sampler_views[shader_stage][i] = views[i]; |
| for (i = num; i < PIPE_MAX_SAMPLERS; ++i) |
| draw->sampler_views[shader_stage][i] = NULL; |
| |
| draw->num_sampler_views[shader_stage] = num; |
| } |
| |
| void |
| draw_set_samplers(struct draw_context *draw, |
| unsigned shader_stage, |
| struct pipe_sampler_state **samplers, |
| unsigned num) |
| { |
| unsigned i; |
| |
| debug_assert(shader_stage < PIPE_SHADER_TYPES); |
| debug_assert(num <= PIPE_MAX_SAMPLERS); |
| |
| for (i = 0; i < num; ++i) |
| draw->samplers[shader_stage][i] = samplers[i]; |
| for (i = num; i < PIPE_MAX_SAMPLERS; ++i) |
| draw->samplers[shader_stage][i] = NULL; |
| |
| draw->num_samplers[shader_stage] = num; |
| |
| #ifdef HAVE_LLVM |
| if (draw->llvm && shader_stage == PIPE_SHADER_VERTEX) |
| draw_llvm_set_sampler_state(draw); |
| #endif |
| } |
| |
| void |
| draw_set_mapped_texture(struct draw_context *draw, |
| unsigned shader_stage, |
| unsigned sampler_idx, |
| uint32_t width, uint32_t height, uint32_t depth, |
| uint32_t first_level, uint32_t last_level, |
| uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS], |
| uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS], |
| const void *data[PIPE_MAX_TEXTURE_LEVELS]) |
| { |
| if (shader_stage == PIPE_SHADER_VERTEX) { |
| #ifdef HAVE_LLVM |
| if (draw->llvm) |
| draw_llvm_set_mapped_texture(draw, |
| sampler_idx, |
| width, height, depth, first_level, last_level, |
| row_stride, img_stride, data); |
| #endif |
| } |
| } |
| |
| /** |
| * XXX: Results for PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS because there are two |
| * different ways of setting textures, and drivers typically only support one. |
| */ |
| int |
| draw_get_shader_param_no_llvm(unsigned shader, enum pipe_shader_cap param) |
| { |
| switch(shader) { |
| case PIPE_SHADER_VERTEX: |
| case PIPE_SHADER_GEOMETRY: |
| return tgsi_exec_get_shader_param(param); |
| default: |
| return 0; |
| } |
| } |
| |
| /** |
| * XXX: Results for PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS because there are two |
| * different ways of setting textures, and drivers typically only support one. |
| */ |
| int |
| draw_get_shader_param(unsigned shader, enum pipe_shader_cap param) |
| { |
| |
| #ifdef HAVE_LLVM |
| if (draw_get_option_use_llvm()) { |
| switch(shader) { |
| case PIPE_SHADER_VERTEX: |
| case PIPE_SHADER_GEOMETRY: |
| return gallivm_get_shader_param(param); |
| default: |
| return 0; |
| } |
| } |
| #endif |
| |
| return draw_get_shader_param_no_llvm(shader, param); |
| } |
| |