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  1. /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
  2.  
  3. /*
  4.  * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining a
  7.  * copy of this software and associated documentation files (the "Software"),
  8.  * to deal in the Software without restriction, including without limitation
  9.  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10.  * and/or sell copies of the Software, and to permit persons to whom the
  11.  * Software is furnished to do so, subject to the following conditions:
  12.  *
  13.  * The above copyright notice and this permission notice (including the next
  14.  * paragraph) shall be included in all copies or substantial portions of the
  15.  * Software.
  16.  *
  17.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21.  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22.  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23.  * SOFTWARE.
  24.  *
  25.  * Authors:
  26.  *    Rob Clark <robclark@freedesktop.org>
  27.  */
  28.  
  29.  
  30. #include "fd2_context.h"
  31. #include "fd2_blend.h"
  32. #include "fd2_draw.h"
  33. #include "fd2_emit.h"
  34. #include "fd2_gmem.h"
  35. #include "fd2_program.h"
  36. #include "fd2_rasterizer.h"
  37. #include "fd2_texture.h"
  38. #include "fd2_zsa.h"
  39.  
  40. static void
  41. fd2_context_destroy(struct pipe_context *pctx)
  42. {
  43.         fd_context_destroy(pctx);
  44. }
  45.  
  46. static struct pipe_resource *
  47. create_solid_vertexbuf(struct pipe_context *pctx)
  48. {
  49.         static const float init_shader_const[] = {
  50.                         /* for clear/gmem2mem: */
  51.                         -1.000000, +1.000000, +1.000000, +1.100000,
  52.                         +1.000000, +1.000000, -1.000000, -1.100000,
  53.                         +1.000000, +1.100000, -1.100000, +1.000000,
  54.                         /* for mem2gmem: (vertices) */
  55.                         -1.000000, +1.000000, +1.000000, +1.000000,
  56.                         +1.000000, +1.000000, -1.000000, -1.000000,
  57.                         +1.000000, +1.000000, -1.000000, +1.000000,
  58.                         /* for mem2gmem: (tex coords) */
  59.                         +0.000000, +0.000000, +1.000000, +0.000000,
  60.                         +0.000000, +1.000000, +1.000000, +1.000000,
  61.         };
  62.         struct pipe_resource *prsc = pipe_buffer_create(pctx->screen,
  63.                         PIPE_BIND_CUSTOM, PIPE_USAGE_IMMUTABLE, sizeof(init_shader_const));
  64.         pipe_buffer_write(pctx, prsc, 0,
  65.                         sizeof(init_shader_const), init_shader_const);
  66.         return prsc;
  67. }
  68.  
  69. static const uint8_t a22x_primtypes[PIPE_PRIM_MAX] = {
  70.                 [PIPE_PRIM_POINTS]         = DI_PT_POINTLIST_A2XX,
  71.                 [PIPE_PRIM_LINES]          = DI_PT_LINELIST,
  72.                 [PIPE_PRIM_LINE_STRIP]     = DI_PT_LINESTRIP,
  73.                 [PIPE_PRIM_LINE_LOOP]      = DI_PT_LINELOOP,
  74.                 [PIPE_PRIM_TRIANGLES]      = DI_PT_TRILIST,
  75.                 [PIPE_PRIM_TRIANGLE_STRIP] = DI_PT_TRISTRIP,
  76.                 [PIPE_PRIM_TRIANGLE_FAN]   = DI_PT_TRIFAN,
  77. };
  78.  
  79. static const uint8_t a20x_primtypes[PIPE_PRIM_MAX] = {
  80.                 [PIPE_PRIM_POINTS]         = DI_PT_POINTLIST_A2XX,
  81.                 [PIPE_PRIM_LINES]          = DI_PT_LINELIST,
  82.                 [PIPE_PRIM_LINE_STRIP]     = DI_PT_LINESTRIP,
  83.                 [PIPE_PRIM_TRIANGLES]      = DI_PT_TRILIST,
  84.                 [PIPE_PRIM_TRIANGLE_STRIP] = DI_PT_TRISTRIP,
  85.                 [PIPE_PRIM_TRIANGLE_FAN]   = DI_PT_TRIFAN,
  86. };
  87.  
  88. struct pipe_context *
  89. fd2_context_create(struct pipe_screen *pscreen, void *priv)
  90. {
  91.         struct fd_screen *screen = fd_screen(pscreen);
  92.         struct fd2_context *fd2_ctx = CALLOC_STRUCT(fd2_context);
  93.         struct pipe_context *pctx;
  94.  
  95.         if (!fd2_ctx)
  96.                 return NULL;
  97.  
  98.         pctx = &fd2_ctx->base.base;
  99.  
  100.         fd2_ctx->base.dev = fd_device_ref(screen->dev);
  101.         fd2_ctx->base.screen = fd_screen(pscreen);
  102.  
  103.         pctx->destroy = fd2_context_destroy;
  104.         pctx->create_blend_state = fd2_blend_state_create;
  105.         pctx->create_rasterizer_state = fd2_rasterizer_state_create;
  106.         pctx->create_depth_stencil_alpha_state = fd2_zsa_state_create;
  107.  
  108.         fd2_draw_init(pctx);
  109.         fd2_gmem_init(pctx);
  110.         fd2_texture_init(pctx);
  111.         fd2_prog_init(pctx);
  112.  
  113.         pctx = fd_context_init(&fd2_ctx->base, pscreen,
  114.                         (screen->gpu_id >= 220) ? a22x_primtypes : a20x_primtypes,
  115.                         priv);
  116.         if (!pctx)
  117.                 return NULL;
  118.  
  119.         /* construct vertex state used for solid ops (clear, and gmem<->mem) */
  120.         fd2_ctx->solid_vertexbuf = create_solid_vertexbuf(pctx);
  121.  
  122.         fd2_emit_setup(&fd2_ctx->base);
  123.  
  124.         return pctx;
  125. }
  126.