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  1. /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
  2.  
  3. /*
  4.  * Copyright (C) 2012 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. #include "pipe/p_state.h"
  30. #include "util/u_string.h"
  31. #include "util/u_memory.h"
  32. #include "util/u_prim.h"
  33. #include "util/u_format.h"
  34.  
  35. #include "freedreno_draw.h"
  36. #include "freedreno_context.h"
  37. #include "freedreno_state.h"
  38. #include "freedreno_resource.h"
  39. #include "freedreno_util.h"
  40.  
  41.  
  42. static enum pc_di_primtype
  43. mode2primtype(unsigned mode)
  44. {
  45.         switch (mode) {
  46.         case PIPE_PRIM_POINTS:         return DI_PT_POINTLIST;
  47.         case PIPE_PRIM_LINES:          return DI_PT_LINELIST;
  48.         case PIPE_PRIM_LINE_STRIP:     return DI_PT_LINESTRIP;
  49.         case PIPE_PRIM_TRIANGLES:      return DI_PT_TRILIST;
  50.         case PIPE_PRIM_TRIANGLE_STRIP: return DI_PT_TRISTRIP;
  51.         case PIPE_PRIM_TRIANGLE_FAN:   return DI_PT_TRIFAN;
  52.         case PIPE_PRIM_QUADS:          return DI_PT_QUADLIST;
  53.         case PIPE_PRIM_QUAD_STRIP:     return DI_PT_QUADSTRIP;
  54.         case PIPE_PRIM_POLYGON:        return DI_PT_POLYGON;
  55.         }
  56.         DBG("unsupported mode: (%s) %d", u_prim_name(mode), mode);
  57.         assert(0);
  58.         return DI_PT_NONE;
  59. }
  60.  
  61. static enum pc_di_index_size
  62. size2indextype(unsigned index_size)
  63. {
  64.         switch (index_size) {
  65.         case 1: return INDEX_SIZE_8_BIT;
  66.         case 2: return INDEX_SIZE_16_BIT;
  67.         case 4: return INDEX_SIZE_32_BIT;
  68.         }
  69.         DBG("unsupported index size: %d", index_size);
  70.         assert(0);
  71.         return INDEX_SIZE_IGN;
  72. }
  73.  
  74. /* this is same for a2xx/a3xx, so split into helper: */
  75. void
  76. fd_draw_emit(struct fd_context *ctx, const struct pipe_draw_info *info)
  77. {
  78.         struct fd_ringbuffer *ring = ctx->ring;
  79.         struct pipe_index_buffer *idx = &ctx->indexbuf;
  80.         struct fd_bo *idx_bo = NULL;
  81.         enum pc_di_index_size idx_type = INDEX_SIZE_IGN;
  82.         enum pc_di_src_sel src_sel;
  83.         uint32_t idx_size, idx_offset;
  84.  
  85.         if (info->indexed) {
  86.                 assert(!idx->user_buffer);
  87.  
  88.                 idx_bo = fd_resource(idx->buffer)->bo;
  89.                 idx_type = size2indextype(idx->index_size);
  90.                 idx_size = idx->index_size * info->count;
  91.                 idx_offset = idx->offset;
  92.                 src_sel = DI_SRC_SEL_DMA;
  93.         } else {
  94.                 idx_bo = NULL;
  95.                 idx_type = INDEX_SIZE_IGN;
  96.                 idx_size = 0;
  97.                 idx_offset = 0;
  98.                 src_sel = DI_SRC_SEL_AUTO_INDEX;
  99.         }
  100.  
  101.         OUT_PKT3(ring, CP_DRAW_INDX, info->indexed ? 5 : 3);
  102.         OUT_RING(ring, 0x00000000);        /* viz query info. */
  103.         OUT_RING(ring, DRAW(mode2primtype(info->mode),
  104.                         src_sel, idx_type, IGNORE_VISIBILITY));
  105.         OUT_RING(ring, info->count);       /* NumIndices */
  106.         if (info->indexed) {
  107.                 OUT_RELOC(ring, idx_bo, idx_offset, 0);
  108.                 OUT_RING (ring, idx_size);
  109.         }
  110. }
  111.  
  112. static void
  113. fd_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
  114. {
  115.         struct fd_context *ctx = fd_context(pctx);
  116.         struct pipe_framebuffer_state *pfb = &ctx->framebuffer;
  117.         struct pipe_scissor_state *scissor = fd_context_get_scissor(ctx);
  118.         unsigned i, buffers = 0;
  119.  
  120.         /* if we supported transform feedback, we'd have to disable this: */
  121.         if (((scissor->maxx - scissor->minx) *
  122.                         (scissor->maxy - scissor->miny)) == 0) {
  123.                 return;
  124.         }
  125.  
  126.         ctx->needs_flush = true;
  127.  
  128.         /*
  129.          * Figure out the buffers/features we need:
  130.          */
  131.  
  132.         if (fd_depth_enabled(ctx)) {
  133.                 buffers |= FD_BUFFER_DEPTH;
  134.                 fd_resource(pfb->zsbuf->texture)->dirty = true;
  135.                 ctx->gmem_reason |= FD_GMEM_DEPTH_ENABLED;
  136.         }
  137.  
  138.         if (fd_stencil_enabled(ctx)) {
  139.                 buffers |= FD_BUFFER_STENCIL;
  140.                 fd_resource(pfb->zsbuf->texture)->dirty = true;
  141.                 ctx->gmem_reason |= FD_GMEM_STENCIL_ENABLED;
  142.         }
  143.  
  144.         if (fd_logicop_enabled(ctx))
  145.                 ctx->gmem_reason |= FD_GMEM_LOGICOP_ENABLED;
  146.  
  147.         for (i = 0; i < pfb->nr_cbufs; i++) {
  148.                 struct pipe_resource *surf = pfb->cbufs[i]->texture;
  149.  
  150.                 fd_resource(surf)->dirty = true;
  151.                 buffers |= FD_BUFFER_COLOR;
  152.  
  153.                 if (surf->nr_samples > 1)
  154.                         ctx->gmem_reason |= FD_GMEM_MSAA_ENABLED;
  155.  
  156.                 if (fd_blend_enabled(ctx, i))
  157.                         ctx->gmem_reason |= FD_GMEM_BLEND_ENABLED;
  158.         }
  159.  
  160.         ctx->num_draws++;
  161.  
  162.         /* any buffers that haven't been cleared, we need to restore: */
  163.         ctx->restore |= buffers & (FD_BUFFER_ALL & ~ctx->cleared);
  164.         /* and any buffers used, need to be resolved: */
  165.         ctx->resolve |= buffers;
  166.  
  167.         ctx->draw(ctx, info);
  168. }
  169.  
  170. /* TODO figure out how to make better use of existing state mechanism
  171.  * for clear (and possibly gmem->mem / mem->gmem) so we can (a) keep
  172.  * track of what state really actually changes, and (b) reduce the code
  173.  * in the a2xx/a3xx parts.
  174.  */
  175.  
  176. static void
  177. fd_clear(struct pipe_context *pctx, unsigned buffers,
  178.                 const union pipe_color_union *color, double depth, unsigned stencil)
  179. {
  180.         struct fd_context *ctx = fd_context(pctx);
  181.         struct pipe_framebuffer_state *pfb = &ctx->framebuffer;
  182.  
  183.         ctx->cleared |= buffers;
  184.         ctx->resolve |= buffers;
  185.         ctx->needs_flush = true;
  186.  
  187.         if (buffers & PIPE_CLEAR_COLOR)
  188.                 fd_resource(pfb->cbufs[0]->texture)->dirty = true;
  189.  
  190.         if (buffers & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)) {
  191.                 fd_resource(pfb->zsbuf->texture)->dirty = true;
  192.                 ctx->gmem_reason |= FD_GMEM_CLEARS_DEPTH_STENCIL;
  193.         }
  194.  
  195.         DBG("%x depth=%f, stencil=%u (%s/%s)", buffers, depth, stencil,
  196.                         util_format_name(pfb->cbufs[0]->format),
  197.                         pfb->zsbuf ? util_format_name(pfb->zsbuf->format) : "none");
  198.  
  199.         ctx->clear(ctx, buffers, color, depth, stencil);
  200.  
  201.         ctx->dirty |= FD_DIRTY_ZSA |
  202.                         FD_DIRTY_RASTERIZER |
  203.                         FD_DIRTY_SAMPLE_MASK |
  204.                         FD_DIRTY_PROG |
  205.                         FD_DIRTY_CONSTBUF |
  206.                         FD_DIRTY_BLEND;
  207.  
  208.         if (fd_mesa_debug & FD_DBG_DCLEAR)
  209.                 ctx->dirty = 0xffffffff;
  210. }
  211.  
  212. static void
  213. fd_clear_render_target(struct pipe_context *pctx, struct pipe_surface *ps,
  214.                 const union pipe_color_union *color,
  215.                 unsigned x, unsigned y, unsigned w, unsigned h)
  216. {
  217.         DBG("TODO: x=%u, y=%u, w=%u, h=%u", x, y, w, h);
  218. }
  219.  
  220. static void
  221. fd_clear_depth_stencil(struct pipe_context *pctx, struct pipe_surface *ps,
  222.                 unsigned buffers, double depth, unsigned stencil,
  223.                 unsigned x, unsigned y, unsigned w, unsigned h)
  224. {
  225.         DBG("TODO: buffers=%u, depth=%f, stencil=%u, x=%u, y=%u, w=%u, h=%u",
  226.                         buffers, depth, stencil, x, y, w, h);
  227. }
  228.  
  229. void
  230. fd_draw_init(struct pipe_context *pctx)
  231. {
  232.         pctx->draw_vbo = fd_draw_vbo;
  233.         pctx->clear = fd_clear;
  234.         pctx->clear_render_target = fd_clear_render_target;
  235.         pctx->clear_depth_stencil = fd_clear_depth_stencil;
  236. }
  237.