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 nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface; \
  36         GLuint p;                                                       \
  37         (void)p;
  38
  39 #define LOCAL_DEPTH_VARS LOCAL_VARS
  40
  41 #define HW_LOCK()
  42 #define HW_UNLOCK()
  43
  44 #define HW_CLIPLOOP() {                                                 \
  45         int minx = 0;                                                   \
  46         int miny = 0;                                                   \
  47         int maxx = rb->Width;                                           \
  48         int maxy = rb->Height;
  49
  50 #define HW_ENDCLIPLOOP() }
  51
  52 #define Y_FLIP(y) (rb->Name ? (y) : rb->Height - 1 - (y))
  53
  54 /* RGB565 span functions */
  55 #define SPANTMP_PIXEL_FMT GL_RGB
  56 #define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5
  57 #define TAG(x) nouveau_##x##_rgb565
  58 #define TAG2(x, y) nouveau_##x##_rgb565##y
  59 #define GET_PTR(x, y) (s->bo->map + (y)*s->pitch + (x)*s->cpp)
  60
  61 #include "spantmp2.h"
  62
  63 /* RGB888 span functions */
  64 #define SPANTMP_PIXEL_FMT GL_BGR
  65 #define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
  66 #define TAG(x) nouveau_##x##_rgb888
  67 #define TAG2(x, y) nouveau_##x##_rgb888##y
  68 #define GET_PTR(x, y) (s->bo->map + (y)*s->pitch + (x)*s->cpp)
  69
  70 #include "spantmp2.h"
  71
  72 /* ARGB8888 span functions */
  73 #define SPANTMP_PIXEL_FMT GL_BGRA
  74 #define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
  75 #define TAG(x) nouveau_##x##_argb8888
  76 #define TAG2(x, y) nouveau_##x##_argb8888##y
  77 #define GET_PTR(x, y) (s->bo->map + (y)*s->pitch + (x)*s->cpp)
  78
  79 #include "spantmp2.h"
  80
  81 /* Z16 span functions */
  82 #define VALUE_TYPE uint16_t
  83 #define READ_DEPTH(v, x, y)                                             \
  84         v = *(uint16_t *)(s->bo->map + (y)*s->pitch + (x)*s->cpp);
  85 #define WRITE_DEPTH(x, y, v)                                            \
  86         *(uint16_t *)(s->bo->map + (y)*s->pitch + (x)*s->cpp) = v
  87 #define TAG(x) nouveau_##x##_z16
  88
  89 #include "depthtmp.h"
  90
  91 /* Z24S8 span functions */
  92 #define VALUE_TYPE uint32_t
  93 #define READ_DEPTH(v, x, y)                                             \
  94         v = *(uint32_t *)(s->bo->map + (y)*s->pitch + (x)*s->cpp);
  95 #define WRITE_DEPTH(x, y, v)                                            \
  96         *(uint32_t *)(s->bo->map + (y)*s->pitch + (x)*s->cpp) = v
  97 #define TAG(x) nouveau_##x##_z24s8
  98
  99 #include "depthtmp.h"
 100
 101 static void
 102 renderbuffer_map_unmap(struct gl_renderbuffer *rb, GLboolean map)
 103 {
 104         struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface;
 105
 106         if (map) {
 107                 switch (rb->Format) {
 108                 case MESA_FORMAT_RGB565:
 109                         nouveau_InitPointers_rgb565(rb);
 110                         break;
 111                 case MESA_FORMAT_XRGB8888:
 112                         nouveau_InitPointers_rgb888(rb);
 113                         break;
 114                 case MESA_FORMAT_ARGB8888:
 115                         nouveau_InitPointers_argb8888(rb);
 116                         break;
 117                 case MESA_FORMAT_Z16:
 118                         nouveau_InitDepthPointers_z16(rb);
 119                         break;
 120                 case MESA_FORMAT_Z24_S8:
 121                         nouveau_InitDepthPointers_z24s8(rb);
 122                         break;
 123                 default:
 124                         assert(0);
 125                 }
 126
 127                 nouveau_bo_map(s->bo, NOUVEAU_BO_RDWR);
 128         } else {
 129                 nouveau_bo_unmap(s->bo);
 130         }
 131 }
 132
 133 static void
 134 texture_unit_map_unmap(GLcontext *ctx, struct gl_texture_unit *u, GLboolean map)
 135 {
 136         if (!u->_ReallyEnabled)
 137                 return;
 138
 139         if (map)
 140                 ctx->Driver.MapTexture(ctx, u->_Current);
 141         else
 142                 ctx->Driver.UnmapTexture(ctx, u->_Current);
 143 }
 144
 145 static void
 146 framebuffer_map_unmap(struct gl_framebuffer *fb, GLboolean map)
 147 {
 148         int i;
 149
 150         for (i = 0; i < fb->_NumColorDrawBuffers; i++)
 151                 renderbuffer_map_unmap(fb->_ColorDrawBuffers[i], map);
 152
 153         renderbuffer_map_unmap(fb->_ColorReadBuffer, map);
 154
 155         if (fb->_DepthBuffer)
 156                 renderbuffer_map_unmap(fb->_DepthBuffer->Wrapped, map);
 157 }
 158
 159 static void
 160 span_map_unmap(GLcontext *ctx, GLboolean map)
 161 {
 162         int i;
 163
 164         framebuffer_map_unmap(ctx->DrawBuffer, map);
 165
 166         if (ctx->ReadBuffer != ctx->DrawBuffer)
 167                 framebuffer_map_unmap(ctx->ReadBuffer, map);
 168
 169         for (i = 0; i < ctx->Const.MaxTextureUnits; i++)
 170                 texture_unit_map_unmap(ctx, &ctx->Texture.Unit[i], map);
 171 }
 172
 173 static void
 174 nouveau_span_start(GLcontext *ctx)
 175 {
 176         nouveau_fallback(ctx, SWRAST);
 177         span_map_unmap(ctx, GL_TRUE);
 178 }
 179
 180 static void
 181 nouveau_span_finish(GLcontext *ctx)
 182 {
 183         span_map_unmap(ctx, GL_FALSE);
 184         nouveau_fallback(ctx, HWTNL);
 185 }
 186
 187 void
 188 nouveau_span_functions_init(GLcontext *ctx)
 189 {
 190         struct swrast_device_driver *swdd =
 191                 _swrast_GetDeviceDriverReference(ctx);
 192
 193         swdd->SpanRenderStart = nouveau_span_start;
 194         swdd->SpanRenderFinish = nouveau_span_finish;
 195 }