src/mesa/drivers/dri/nouveau/nouveau_span.c

   1 /*
   2  * Copyright (C) 2009 Francisco Jerez.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "nouveau_driver.h"
  28 #include "nouveau_fbo.h"
  29 #include "nouveau_context.h"
  30 #include "nouveau_bo.h"
  31
  32 #include "swrast/swrast.h"
  33
  34 #define LOCAL_VARS                                                      \
  35         struct gl_framebuffer *fb = ctx->DrawBuffer;                    \
  36         struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface; \
  37         GLuint p;                                                       \
  38         (void)p;
  39
  40 #define LOCAL_DEPTH_VARS LOCAL_VARS
  41
  42 #define HW_LOCK()
  43 #define HW_UNLOCK()
  44
  45 #define HW_CLIPLOOP() {                                                 \
  46         int minx = 0;                                                   \
  47         int miny = 0;                                                   \
  48         int maxx = fb->Width;                                           \
  49         int maxy = fb->Height;
  50
  51 #define HW_ENDCLIPLOOP() }
  52
  53 #define Y_FLIP(y) (fb->Name ? (y) : rb->Height - 1 - (y))
  54
  55 /* RGB565 span functions */
  56 #define SPANTMP_PIXEL_FMT GL_RGB
  57 #define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5
  58 #define TAG(x) nouveau_##x##_rgb565
  59 #define TAG2(x, y) nouveau_##x##_rgb565##y
  60 #define GET_PTR(x, y) (s->bo->map + (y)*s->pitch + (x)*s->cpp)
  61
  62 #include "spantmp2.h"
  63
  64 /* RGB888 span functions */
  65 #define SPANTMP_PIXEL_FMT GL_BGR
  66 #define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
  67 #define TAG(x) nouveau_##x##_rgb888
  68 #define TAG2(x, y) nouveau_##x##_rgb888##y
  69 #define GET_PTR(x, y) (s->bo->map + (y)*s->pitch + (x)*s->cpp)
  70
  71 #include "spantmp2.h"
  72
  73 /* ARGB8888 span functions */
  74 #define SPANTMP_PIXEL_FMT GL_BGRA
  75 #define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
  76 #define TAG(x) nouveau_##x##_argb8888
  77 #define TAG2(x, y) nouveau_##x##_argb8888##y
  78 #define GET_PTR(x, y) (s->bo->map + (y)*s->pitch + (x)*s->cpp)
  79
  80 #include "spantmp2.h"
  81
  82 /* Z16 span functions */
  83 #define VALUE_TYPE uint16_t
  84 #define READ_DEPTH(v, x, y)                                             \
  85         v = *(uint16_t *)(s->bo->map + (y)*s->pitch + (x)*s->cpp);
  86 #define WRITE_DEPTH(x, y, v)                                            \
  87         *(uint16_t *)(s->bo->map + (y)*s->pitch + (x)*s->cpp) = v
  88 #define TAG(x) nouveau_##x##_z16
  89
  90 #include "depthtmp.h"
  91
  92 /* Z24S8 span functions */
  93 #define VALUE_TYPE uint32_t
  94 #define READ_DEPTH(v, x, y)                                             \
  95         v = *(uint32_t *)(s->bo->map + (y)*s->pitch + (x)*s->cpp);
  96 #define WRITE_DEPTH(x, y, v)                                            \
  97         *(uint32_t *)(s->bo->map + (y)*s->pitch + (x)*s->cpp) = v
  98 #define TAG(x) nouveau_##x##_z24s8
  99
 100 #include "depthtmp.h"
 101
 102 static void
 103 renderbuffer_map_unmap(struct gl_renderbuffer *rb, GLboolean map)
 104 {
 105         struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface;
 106
 107         if (map) {
 108                 switch (rb->Format) {
 109                 case MESA_FORMAT_RGB565:
 110                         nouveau_InitPointers_rgb565(rb);
 111                         break;
 112                 case MESA_FORMAT_XRGB8888:
 113                         nouveau_InitPointers_rgb888(rb);
 114                         break;
 115                 case MESA_FORMAT_ARGB8888:
 116                         nouveau_InitPointers_argb8888(rb);
 117                         break;
 118                 case MESA_FORMAT_Z16:
 119                         nouveau_InitDepthPointers_z16(rb);
 120                         break;
 121                 case MESA_FORMAT_Z24_S8:
 122                         nouveau_InitDepthPointers_z24s8(rb);
 123                         break;
 124                 default:
 125                         assert(0);
 126                 }
 127
 128                 nouveau_bo_map(s->bo, NOUVEAU_BO_RDWR);
 129         } else {
 130                 nouveau_bo_unmap(s->bo);
 131         }
 132 }
 133
 134 static void
 135 texture_unit_map_unmap(GLcontext *ctx, struct gl_texture_unit *u, GLboolean map)
 136 {
 137         if (!u->_ReallyEnabled)
 138                 return;
 139
 140         if (map)
 141                 ctx->Driver.MapTexture(ctx, u->_Current);
 142         else
 143                 ctx->Driver.UnmapTexture(ctx, u->_Current);
 144 }
 145
 146 static void
 147 span_map_unmap(GLcontext *ctx, GLboolean map)
 148 {
 149         int i;
 150
 151         for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++)
 152                 renderbuffer_map_unmap(ctx->DrawBuffer->_ColorDrawBuffers[i], map);
 153
 154         renderbuffer_map_unmap(ctx->DrawBuffer->_ColorReadBuffer, map);
 155
 156         if (ctx->DrawBuffer->_DepthBuffer)
 157                 renderbuffer_map_unmap(ctx->DrawBuffer->_DepthBuffer->Wrapped, map);
 158
 159         for (i = 0; i < ctx->Const.MaxTextureUnits; i++)
 160                 texture_unit_map_unmap(ctx, &ctx->Texture.Unit[i], map);
 161 }
 162
 163 static void
 164 nouveau_span_start(GLcontext *ctx)
 165 {
 166         nouveau_fallback(ctx, SWRAST);
 167         span_map_unmap(ctx, GL_TRUE);
 168 }
 169
 170 static void
 171 nouveau_span_finish(GLcontext *ctx)
 172 {
 173         span_map_unmap(ctx, GL_FALSE);
 174         nouveau_fallback(ctx, HWTNL);
 175 }
 176
 177 void
 178 nouveau_span_functions_init(GLcontext *ctx)
 179 {
 180         struct swrast_device_driver *swdd =
 181                 _swrast_GetDeviceDriverReference(ctx);
 182
 183         swdd->SpanRenderStart = nouveau_span_start;
 184         swdd->SpanRenderFinish = nouveau_span_finish;
 185 }