| /************************************************************************** |
| * |
| * 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 "draw/draw_context.h" |
| #include "pipe/internal/p_winsys_screen.h" |
| #include "pipe/p_inlines.h" |
| #include "util/u_math.h" |
| #include "util/u_memory.h" |
| #include "tgsi/tgsi_parse.h" |
| |
| #include "i915_context.h" |
| #include "i915_reg.h" |
| #include "i915_state.h" |
| #include "i915_state_inlines.h" |
| #include "i915_fpc.h" |
| |
| /* The i915 (and related graphics cores) do not support GL_CLAMP. The |
| * Intel drivers for "other operating systems" implement GL_CLAMP as |
| * GL_CLAMP_TO_EDGE, so the same is done here. |
| */ |
| static unsigned |
| translate_wrap_mode(unsigned wrap) |
| { |
| switch (wrap) { |
| case PIPE_TEX_WRAP_REPEAT: |
| return TEXCOORDMODE_WRAP; |
| case PIPE_TEX_WRAP_CLAMP: |
| return TEXCOORDMODE_CLAMP_EDGE; /* not quite correct */ |
| case PIPE_TEX_WRAP_CLAMP_TO_EDGE: |
| return TEXCOORDMODE_CLAMP_EDGE; |
| case PIPE_TEX_WRAP_CLAMP_TO_BORDER: |
| return TEXCOORDMODE_CLAMP_BORDER; |
| // case PIPE_TEX_WRAP_MIRRORED_REPEAT: |
| // return TEXCOORDMODE_MIRROR; |
| default: |
| return TEXCOORDMODE_WRAP; |
| } |
| } |
| |
| static unsigned translate_img_filter( unsigned filter ) |
| { |
| switch (filter) { |
| case PIPE_TEX_FILTER_NEAREST: |
| return FILTER_NEAREST; |
| case PIPE_TEX_FILTER_LINEAR: |
| return FILTER_LINEAR; |
| case PIPE_TEX_FILTER_ANISO: |
| return FILTER_ANISOTROPIC; |
| default: |
| assert(0); |
| return FILTER_NEAREST; |
| } |
| } |
| |
| static unsigned translate_mip_filter( unsigned filter ) |
| { |
| switch (filter) { |
| case PIPE_TEX_MIPFILTER_NONE: |
| return MIPFILTER_NONE; |
| case PIPE_TEX_MIPFILTER_NEAREST: |
| return MIPFILTER_NEAREST; |
| case PIPE_TEX_MIPFILTER_LINEAR: |
| return MIPFILTER_LINEAR; |
| default: |
| assert(0); |
| return MIPFILTER_NONE; |
| } |
| } |
| |
| |
| /* None of this state is actually used for anything yet. |
| */ |
| static void * |
| i915_create_blend_state(struct pipe_context *pipe, |
| const struct pipe_blend_state *blend) |
| { |
| struct i915_blend_state *cso_data = CALLOC_STRUCT( i915_blend_state ); |
| |
| { |
| unsigned eqRGB = blend->rgb_func; |
| unsigned srcRGB = blend->rgb_src_factor; |
| unsigned dstRGB = blend->rgb_dst_factor; |
| |
| unsigned eqA = blend->alpha_func; |
| unsigned srcA = blend->alpha_src_factor; |
| unsigned dstA = blend->alpha_dst_factor; |
| |
| /* Special handling for MIN/MAX filter modes handled at |
| * state_tracker level. |
| */ |
| |
| if (srcA != srcRGB || |
| dstA != dstRGB || |
| eqA != eqRGB) { |
| |
| cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | |
| IAB_MODIFY_ENABLE | |
| IAB_ENABLE | |
| IAB_MODIFY_FUNC | |
| IAB_MODIFY_SRC_FACTOR | |
| IAB_MODIFY_DST_FACTOR | |
| SRC_ABLND_FACT(i915_translate_blend_factor(srcA)) | |
| DST_ABLND_FACT(i915_translate_blend_factor(dstA)) | |
| (i915_translate_blend_func(eqA) << IAB_FUNC_SHIFT)); |
| } |
| else { |
| cso_data->iab = (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | |
| IAB_MODIFY_ENABLE | |
| 0); |
| } |
| } |
| |
| cso_data->modes4 |= (_3DSTATE_MODES_4_CMD | |
| ENABLE_LOGIC_OP_FUNC | |
| LOGIC_OP_FUNC(i915_translate_logic_op(blend->logicop_func))); |
| |
| if (blend->logicop_enable) |
| cso_data->LIS5 |= S5_LOGICOP_ENABLE; |
| |
| if (blend->dither) |
| cso_data->LIS5 |= S5_COLOR_DITHER_ENABLE; |
| |
| if ((blend->colormask & PIPE_MASK_R) == 0) |
| cso_data->LIS5 |= S5_WRITEDISABLE_RED; |
| |
| if ((blend->colormask & PIPE_MASK_G) == 0) |
| cso_data->LIS5 |= S5_WRITEDISABLE_GREEN; |
| |
| if ((blend->colormask & PIPE_MASK_B) == 0) |
| cso_data->LIS5 |= S5_WRITEDISABLE_BLUE; |
| |
| if ((blend->colormask & PIPE_MASK_A) == 0) |
| cso_data->LIS5 |= S5_WRITEDISABLE_ALPHA; |
| |
| if (blend->blend_enable) { |
| unsigned funcRGB = blend->rgb_func; |
| unsigned srcRGB = blend->rgb_src_factor; |
| unsigned dstRGB = blend->rgb_dst_factor; |
| |
| cso_data->LIS6 |= (S6_CBUF_BLEND_ENABLE | |
| SRC_BLND_FACT(i915_translate_blend_factor(srcRGB)) | |
| DST_BLND_FACT(i915_translate_blend_factor(dstRGB)) | |
| (i915_translate_blend_func(funcRGB) << S6_CBUF_BLEND_FUNC_SHIFT)); |
| } |
| |
| return cso_data; |
| } |
| |
| static void i915_bind_blend_state(struct pipe_context *pipe, |
| void *blend) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| draw_flush(i915->draw); |
| |
| i915->blend = (struct i915_blend_state*)blend; |
| |
| i915->dirty |= I915_NEW_BLEND; |
| } |
| |
| |
| static void i915_delete_blend_state(struct pipe_context *pipe, void *blend) |
| { |
| FREE(blend); |
| } |
| |
| static void i915_set_blend_color( struct pipe_context *pipe, |
| const struct pipe_blend_color *blend_color ) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| draw_flush(i915->draw); |
| |
| i915->blend_color = *blend_color; |
| |
| i915->dirty |= I915_NEW_BLEND; |
| } |
| |
| static void * |
| i915_create_sampler_state(struct pipe_context *pipe, |
| const struct pipe_sampler_state *sampler) |
| { |
| struct i915_sampler_state *cso = CALLOC_STRUCT( i915_sampler_state ); |
| const unsigned ws = sampler->wrap_s; |
| const unsigned wt = sampler->wrap_t; |
| const unsigned wr = sampler->wrap_r; |
| unsigned minFilt, magFilt; |
| unsigned mipFilt; |
| |
| cso->templ = sampler; |
| |
| mipFilt = translate_mip_filter(sampler->min_mip_filter); |
| minFilt = translate_img_filter( sampler->min_img_filter ); |
| magFilt = translate_img_filter( sampler->mag_img_filter ); |
| |
| if (sampler->max_anisotropy > 2.0) { |
| cso->state[0] |= SS2_MAX_ANISO_4; |
| } |
| |
| { |
| int b = (int) (sampler->lod_bias * 16.0); |
| b = CLAMP(b, -256, 255); |
| cso->state[0] |= ((b << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); |
| } |
| |
| /* Shadow: |
| */ |
| if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) |
| { |
| cso->state[0] |= (SS2_SHADOW_ENABLE | |
| i915_translate_compare_func(sampler->compare_func)); |
| |
| minFilt = FILTER_4X4_FLAT; |
| magFilt = FILTER_4X4_FLAT; |
| } |
| |
| cso->state[0] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | |
| (mipFilt << SS2_MIP_FILTER_SHIFT) | |
| (magFilt << SS2_MAG_FILTER_SHIFT)); |
| |
| cso->state[1] |= |
| ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | |
| (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | |
| (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); |
| |
| if (sampler->normalized_coords) |
| cso->state[1] |= SS3_NORMALIZED_COORDS; |
| |
| { |
| int minlod = (int) (16.0 * sampler->min_lod); |
| int maxlod = (int) (16.0 * sampler->max_lod); |
| minlod = CLAMP(minlod, 0, 16 * 11); |
| maxlod = CLAMP(maxlod, 0, 16 * 11); |
| |
| if (minlod > maxlod) |
| maxlod = minlod; |
| |
| cso->minlod = minlod; |
| cso->maxlod = maxlod; |
| } |
| |
| { |
| ubyte r = float_to_ubyte(sampler->border_color[0]); |
| ubyte g = float_to_ubyte(sampler->border_color[1]); |
| ubyte b = float_to_ubyte(sampler->border_color[2]); |
| ubyte a = float_to_ubyte(sampler->border_color[3]); |
| cso->state[2] = I915PACKCOLOR8888(r, g, b, a); |
| } |
| return cso; |
| } |
| |
| static void i915_bind_sampler_states(struct pipe_context *pipe, |
| unsigned num, void **sampler) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| unsigned i; |
| |
| assert(num <= PIPE_MAX_SAMPLERS); |
| |
| /* Check for no-op */ |
| if (num == i915->num_samplers && |
| !memcmp(i915->sampler, sampler, num * sizeof(void *))) |
| return; |
| |
| draw_flush(i915->draw); |
| |
| for (i = 0; i < num; ++i) |
| i915->sampler[i] = sampler[i]; |
| for (i = num; i < PIPE_MAX_SAMPLERS; ++i) |
| i915->sampler[i] = NULL; |
| |
| i915->num_samplers = num; |
| |
| i915->dirty |= I915_NEW_SAMPLER; |
| } |
| |
| static void i915_delete_sampler_state(struct pipe_context *pipe, |
| void *sampler) |
| { |
| FREE(sampler); |
| } |
| |
| |
| /** XXX move someday? Or consolidate all these simple state setters |
| * into one file. |
| */ |
| |
| static void * |
| i915_create_depth_stencil_state(struct pipe_context *pipe, |
| const struct pipe_depth_stencil_alpha_state *depth_stencil) |
| { |
| struct i915_depth_stencil_state *cso = CALLOC_STRUCT( i915_depth_stencil_state ); |
| |
| { |
| int testmask = depth_stencil->stencil[0].valuemask & 0xff; |
| int writemask = depth_stencil->stencil[0].writemask & 0xff; |
| |
| cso->stencil_modes4 |= (_3DSTATE_MODES_4_CMD | |
| ENABLE_STENCIL_TEST_MASK | |
| STENCIL_TEST_MASK(testmask) | |
| ENABLE_STENCIL_WRITE_MASK | |
| STENCIL_WRITE_MASK(writemask)); |
| } |
| |
| if (depth_stencil->stencil[0].enabled) { |
| int test = i915_translate_compare_func(depth_stencil->stencil[0].func); |
| int fop = i915_translate_stencil_op(depth_stencil->stencil[0].fail_op); |
| int dfop = i915_translate_stencil_op(depth_stencil->stencil[0].zfail_op); |
| int dpop = i915_translate_stencil_op(depth_stencil->stencil[0].zpass_op); |
| int ref = depth_stencil->stencil[0].ref_value & 0xff; |
| |
| cso->stencil_LIS5 |= (S5_STENCIL_TEST_ENABLE | |
| S5_STENCIL_WRITE_ENABLE | |
| (ref << S5_STENCIL_REF_SHIFT) | |
| (test << S5_STENCIL_TEST_FUNC_SHIFT) | |
| (fop << S5_STENCIL_FAIL_SHIFT) | |
| (dfop << S5_STENCIL_PASS_Z_FAIL_SHIFT) | |
| (dpop << S5_STENCIL_PASS_Z_PASS_SHIFT)); |
| } |
| |
| if (depth_stencil->stencil[1].enabled) { |
| int test = i915_translate_compare_func(depth_stencil->stencil[1].func); |
| int fop = i915_translate_stencil_op(depth_stencil->stencil[1].fail_op); |
| int dfop = i915_translate_stencil_op(depth_stencil->stencil[1].zfail_op); |
| int dpop = i915_translate_stencil_op(depth_stencil->stencil[1].zpass_op); |
| int ref = depth_stencil->stencil[1].ref_value & 0xff; |
| int tmask = depth_stencil->stencil[1].valuemask & 0xff; |
| int wmask = depth_stencil->stencil[1].writemask & 0xff; |
| |
| cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | |
| BFO_ENABLE_STENCIL_FUNCS | |
| BFO_ENABLE_STENCIL_TWO_SIDE | |
| BFO_ENABLE_STENCIL_REF | |
| BFO_STENCIL_TWO_SIDE | |
| (ref << BFO_STENCIL_REF_SHIFT) | |
| (test << BFO_STENCIL_TEST_SHIFT) | |
| (fop << BFO_STENCIL_FAIL_SHIFT) | |
| (dfop << BFO_STENCIL_PASS_Z_FAIL_SHIFT) | |
| (dpop << BFO_STENCIL_PASS_Z_PASS_SHIFT)); |
| |
| cso->bfo[1] = (_3DSTATE_BACKFACE_STENCIL_MASKS | |
| BFM_ENABLE_STENCIL_TEST_MASK | |
| BFM_ENABLE_STENCIL_WRITE_MASK | |
| (tmask << BFM_STENCIL_TEST_MASK_SHIFT) | |
| (wmask << BFM_STENCIL_WRITE_MASK_SHIFT)); |
| } |
| else { |
| /* This actually disables two-side stencil: The bit set is a |
| * modify-enable bit to indicate we are changing the two-side |
| * setting. Then there is a symbolic zero to show that we are |
| * setting the flag to zero/off. |
| */ |
| cso->bfo[0] = (_3DSTATE_BACKFACE_STENCIL_OPS | |
| BFO_ENABLE_STENCIL_TWO_SIDE | |
| 0); |
| cso->bfo[1] = 0; |
| } |
| |
| if (depth_stencil->depth.enabled) { |
| int func = i915_translate_compare_func(depth_stencil->depth.func); |
| |
| cso->depth_LIS6 |= (S6_DEPTH_TEST_ENABLE | |
| (func << S6_DEPTH_TEST_FUNC_SHIFT)); |
| |
| if (depth_stencil->depth.writemask) |
| cso->depth_LIS6 |= S6_DEPTH_WRITE_ENABLE; |
| } |
| |
| if (depth_stencil->alpha.enabled) { |
| int test = i915_translate_compare_func(depth_stencil->alpha.func); |
| ubyte refByte = float_to_ubyte(depth_stencil->alpha.ref_value); |
| |
| cso->depth_LIS6 |= (S6_ALPHA_TEST_ENABLE | |
| (test << S6_ALPHA_TEST_FUNC_SHIFT) | |
| (((unsigned) refByte) << S6_ALPHA_REF_SHIFT)); |
| } |
| |
| return cso; |
| } |
| |
| static void i915_bind_depth_stencil_state(struct pipe_context *pipe, |
| void *depth_stencil) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| draw_flush(i915->draw); |
| |
| i915->depth_stencil = (const struct i915_depth_stencil_state *)depth_stencil; |
| |
| i915->dirty |= I915_NEW_DEPTH_STENCIL; |
| } |
| |
| static void i915_delete_depth_stencil_state(struct pipe_context *pipe, |
| void *depth_stencil) |
| { |
| FREE(depth_stencil); |
| } |
| |
| |
| static void i915_set_scissor_state( struct pipe_context *pipe, |
| const struct pipe_scissor_state *scissor ) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| draw_flush(i915->draw); |
| |
| memcpy( &i915->scissor, scissor, sizeof(*scissor) ); |
| i915->dirty |= I915_NEW_SCISSOR; |
| } |
| |
| |
| static void i915_set_polygon_stipple( struct pipe_context *pipe, |
| const struct pipe_poly_stipple *stipple ) |
| { |
| } |
| |
| |
| |
| static void * |
| i915_create_fs_state(struct pipe_context *pipe, |
| const struct pipe_shader_state *templ) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| struct i915_fragment_shader *ifs = CALLOC_STRUCT(i915_fragment_shader); |
| if (!ifs) |
| return NULL; |
| |
| ifs->state.tokens = tgsi_dup_tokens(templ->tokens); |
| |
| tgsi_scan_shader(templ->tokens, &ifs->info); |
| |
| /* The shader's compiled to i915 instructions here */ |
| i915_translate_fragment_program(i915, ifs); |
| |
| return ifs; |
| } |
| |
| static void |
| i915_bind_fs_state(struct pipe_context *pipe, void *shader) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| draw_flush(i915->draw); |
| |
| i915->fs = (struct i915_fragment_shader*) shader; |
| |
| i915->dirty |= I915_NEW_FS; |
| } |
| |
| static |
| void i915_delete_fs_state(struct pipe_context *pipe, void *shader) |
| { |
| struct i915_fragment_shader *ifs = (struct i915_fragment_shader *) shader; |
| |
| if (ifs->program) |
| FREE(ifs->program); |
| ifs->program_len = 0; |
| |
| FREE((struct tgsi_token *)ifs->state.tokens); |
| |
| FREE(ifs); |
| } |
| |
| |
| static void * |
| i915_create_vs_state(struct pipe_context *pipe, |
| const struct pipe_shader_state *templ) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| |
| /* just pass-through to draw module */ |
| return draw_create_vertex_shader(i915->draw, templ); |
| } |
| |
| static void i915_bind_vs_state(struct pipe_context *pipe, void *shader) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| |
| /* just pass-through to draw module */ |
| draw_bind_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); |
| |
| i915->dirty |= I915_NEW_VS; |
| } |
| |
| static void i915_delete_vs_state(struct pipe_context *pipe, void *shader) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| |
| /* just pass-through to draw module */ |
| draw_delete_vertex_shader(i915->draw, (struct draw_vertex_shader *) shader); |
| } |
| |
| static void i915_set_constant_buffer(struct pipe_context *pipe, |
| uint shader, uint index, |
| const struct pipe_constant_buffer *buf) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| struct pipe_screen *screen = pipe->screen; |
| draw_flush(i915->draw); |
| |
| assert(shader < PIPE_SHADER_TYPES); |
| assert(index == 0); |
| |
| /* Make a copy of shader constants. |
| * During fragment program translation we may add additional |
| * constants to the array. |
| * |
| * We want to consider the situation where some user constants |
| * (ex: a material color) may change frequently but the shader program |
| * stays the same. In that case we should only be updating the first |
| * N constants, leaving any extras from shader translation alone. |
| */ |
| if (buf) { |
| void *mapped; |
| if (buf->buffer && buf->buffer->size && |
| (mapped = pipe_buffer_map(screen, buf->buffer, |
| PIPE_BUFFER_USAGE_CPU_READ))) { |
| memcpy(i915->current.constants[shader], mapped, buf->buffer->size); |
| pipe_buffer_unmap(screen, buf->buffer); |
| i915->current.num_user_constants[shader] |
| = buf->buffer->size / (4 * sizeof(float)); |
| } |
| else { |
| i915->current.num_user_constants[shader] = 0; |
| } |
| } |
| |
| i915->dirty |= I915_NEW_CONSTANTS; |
| } |
| |
| |
| static void i915_set_sampler_textures(struct pipe_context *pipe, |
| unsigned num, |
| struct pipe_texture **texture) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| uint i; |
| |
| assert(num <= PIPE_MAX_SAMPLERS); |
| |
| /* Check for no-op */ |
| if (num == i915->num_textures && |
| !memcmp(i915->texture, texture, num * sizeof(struct pipe_texture *))) |
| return; |
| |
| /* Fixes wrong texture in texobj with VBUF */ |
| draw_flush(i915->draw); |
| |
| for (i = 0; i < num; i++) |
| pipe_texture_reference((struct pipe_texture **) &i915->texture[i], |
| texture[i]); |
| |
| for (i = num; i < i915->num_textures; i++) |
| pipe_texture_reference((struct pipe_texture **) &i915->texture[i], |
| NULL); |
| |
| i915->num_textures = num; |
| |
| i915->dirty |= I915_NEW_TEXTURE; |
| } |
| |
| |
| |
| static void i915_set_framebuffer_state(struct pipe_context *pipe, |
| const struct pipe_framebuffer_state *fb) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| int i; |
| |
| draw_flush(i915->draw); |
| |
| i915->framebuffer.width = fb->width; |
| i915->framebuffer.height = fb->height; |
| i915->framebuffer.nr_cbufs = fb->nr_cbufs; |
| for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { |
| pipe_surface_reference(&i915->framebuffer.cbufs[i], fb->cbufs[i]); |
| } |
| pipe_surface_reference(&i915->framebuffer.zsbuf, fb->zsbuf); |
| |
| i915->dirty |= I915_NEW_FRAMEBUFFER; |
| } |
| |
| |
| |
| static void i915_set_clip_state( struct pipe_context *pipe, |
| const struct pipe_clip_state *clip ) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| draw_flush(i915->draw); |
| |
| draw_set_clip_state(i915->draw, clip); |
| |
| i915->dirty |= I915_NEW_CLIP; |
| } |
| |
| |
| |
| /* Called when driver state tracker notices changes to the viewport |
| * matrix: |
| */ |
| static void i915_set_viewport_state( struct pipe_context *pipe, |
| const struct pipe_viewport_state *viewport ) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| |
| i915->viewport = *viewport; /* struct copy */ |
| |
| /* pass the viewport info to the draw module */ |
| draw_set_viewport_state(i915->draw, &i915->viewport); |
| |
| i915->dirty |= I915_NEW_VIEWPORT; |
| } |
| |
| |
| static void * |
| i915_create_rasterizer_state(struct pipe_context *pipe, |
| const struct pipe_rasterizer_state *rasterizer) |
| { |
| struct i915_rasterizer_state *cso = CALLOC_STRUCT( i915_rasterizer_state ); |
| |
| cso->templ = rasterizer; |
| cso->color_interp = rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; |
| cso->light_twoside = rasterizer->light_twoside; |
| cso->ds[0].u = _3DSTATE_DEPTH_OFFSET_SCALE; |
| cso->ds[1].f = rasterizer->offset_scale; |
| if (rasterizer->poly_stipple_enable) { |
| cso->st |= ST1_ENABLE; |
| } |
| |
| if (rasterizer->scissor) |
| cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT; |
| else |
| cso->sc[0] = _3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT; |
| |
| switch (rasterizer->cull_mode) { |
| case PIPE_WINDING_NONE: |
| cso->LIS4 |= S4_CULLMODE_NONE; |
| break; |
| case PIPE_WINDING_CW: |
| cso->LIS4 |= S4_CULLMODE_CW; |
| break; |
| case PIPE_WINDING_CCW: |
| cso->LIS4 |= S4_CULLMODE_CCW; |
| break; |
| case PIPE_WINDING_BOTH: |
| cso->LIS4 |= S4_CULLMODE_BOTH; |
| break; |
| } |
| |
| { |
| int line_width = CLAMP((int)(rasterizer->line_width * 2), 1, 0xf); |
| |
| cso->LIS4 |= line_width << S4_LINE_WIDTH_SHIFT; |
| |
| if (rasterizer->line_smooth) |
| cso->LIS4 |= S4_LINE_ANTIALIAS_ENABLE; |
| } |
| |
| { |
| int point_size = CLAMP((int) rasterizer->point_size, 1, 0xff); |
| |
| cso->LIS4 |= point_size << S4_POINT_WIDTH_SHIFT; |
| } |
| |
| if (rasterizer->flatshade) { |
| cso->LIS4 |= (S4_FLATSHADE_ALPHA | |
| S4_FLATSHADE_COLOR | |
| S4_FLATSHADE_SPECULAR); |
| } |
| |
| cso->LIS7 = fui( rasterizer->offset_units ); |
| |
| |
| return cso; |
| } |
| |
| static void i915_bind_rasterizer_state( struct pipe_context *pipe, |
| void *raster ) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| |
| i915->rasterizer = (struct i915_rasterizer_state *)raster; |
| |
| /* pass-through to draw module */ |
| draw_set_rasterizer_state(i915->draw, |
| (i915->rasterizer ? i915->rasterizer->templ : NULL)); |
| |
| i915->dirty |= I915_NEW_RASTERIZER; |
| } |
| |
| static void i915_delete_rasterizer_state(struct pipe_context *pipe, |
| void *raster) |
| { |
| FREE(raster); |
| } |
| |
| static void i915_set_vertex_buffers(struct pipe_context *pipe, |
| unsigned count, |
| const struct pipe_vertex_buffer *buffers) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| /* Because we change state before the draw_set_vertex_buffers call |
| * we need a flush here, just to be sure. |
| */ |
| draw_flush(i915->draw); |
| |
| memcpy(i915->vertex_buffer, buffers, count * sizeof(buffers[0])); |
| i915->num_vertex_buffers = count; |
| |
| /* pass-through to draw module */ |
| draw_set_vertex_buffers(i915->draw, count, buffers); |
| } |
| |
| static void i915_set_vertex_elements(struct pipe_context *pipe, |
| unsigned count, |
| const struct pipe_vertex_element *elements) |
| { |
| struct i915_context *i915 = i915_context(pipe); |
| /* Because we change state before the draw_set_vertex_buffers call |
| * we need a flush here, just to be sure. |
| */ |
| draw_flush(i915->draw); |
| |
| i915->num_vertex_elements = count; |
| /* pass-through to draw module */ |
| draw_set_vertex_elements(i915->draw, count, elements); |
| } |
| |
| |
| static void i915_set_edgeflags(struct pipe_context *pipe, |
| const unsigned *bitfield) |
| { |
| /* TODO do something here */ |
| } |
| |
| void |
| i915_init_state_functions( struct i915_context *i915 ) |
| { |
| i915->base.set_edgeflags = i915_set_edgeflags; |
| i915->base.create_blend_state = i915_create_blend_state; |
| i915->base.bind_blend_state = i915_bind_blend_state; |
| i915->base.delete_blend_state = i915_delete_blend_state; |
| |
| i915->base.create_sampler_state = i915_create_sampler_state; |
| i915->base.bind_sampler_states = i915_bind_sampler_states; |
| i915->base.delete_sampler_state = i915_delete_sampler_state; |
| |
| i915->base.create_depth_stencil_alpha_state = i915_create_depth_stencil_state; |
| i915->base.bind_depth_stencil_alpha_state = i915_bind_depth_stencil_state; |
| i915->base.delete_depth_stencil_alpha_state = i915_delete_depth_stencil_state; |
| |
| i915->base.create_rasterizer_state = i915_create_rasterizer_state; |
| i915->base.bind_rasterizer_state = i915_bind_rasterizer_state; |
| i915->base.delete_rasterizer_state = i915_delete_rasterizer_state; |
| i915->base.create_fs_state = i915_create_fs_state; |
| i915->base.bind_fs_state = i915_bind_fs_state; |
| i915->base.delete_fs_state = i915_delete_fs_state; |
| i915->base.create_vs_state = i915_create_vs_state; |
| i915->base.bind_vs_state = i915_bind_vs_state; |
| i915->base.delete_vs_state = i915_delete_vs_state; |
| |
| i915->base.set_blend_color = i915_set_blend_color; |
| i915->base.set_clip_state = i915_set_clip_state; |
| i915->base.set_constant_buffer = i915_set_constant_buffer; |
| i915->base.set_framebuffer_state = i915_set_framebuffer_state; |
| |
| i915->base.set_polygon_stipple = i915_set_polygon_stipple; |
| i915->base.set_scissor_state = i915_set_scissor_state; |
| i915->base.set_sampler_textures = i915_set_sampler_textures; |
| i915->base.set_viewport_state = i915_set_viewport_state; |
| i915->base.set_vertex_buffers = i915_set_vertex_buffers; |
| i915->base.set_vertex_elements = i915_set_vertex_elements; |
| } |