[WINED3D] Add support for A16B16G16R16F and A32B32G32R32F texture formats

[Ivan Gyurdiev]

This is using extensions:
GL_ARB_texture_float
GL_ARB_half_float_pixel

It makes the car show up in dx9_hdr_texture_loader demo.
Philcostin also noted some kind of improvement w/ HDR lighting in HL2: 
Lost Coast.

-------------- next part --------------
---
 dlls/wined3d/directx.c    |   23 +++++++++++++++++++++--
 dlls/wined3d/utils.c      |    4 ++--
 include/wine/wined3d_gl.h |   13 +++++++++++++
 3 files changed, 36 insertions(+), 4 deletions(-)

diff --git a/dlls/wined3d/directx.c b/dlls/wined3d/directx.c
index a7d3e1a..c413175 100644
--- a/dlls/wined3d/directx.c
+++ b/dlls/wined3d/directx.c
@@ -576,6 +576,12 @@ #undef USE_GL_FUNC
             } else if (strcmp(ThisExtn, "GL_ARB_texture_env_dot3") == 0) {
                 TRACE_(d3d_caps)(" FOUND: ARB Dot3 support\n");
                 gl_info->supported[ARB_TEXTURE_ENV_DOT3] = TRUE;
+            } else if (strcmp(ThisExtn, "GL_ARB_texture_float") == 0) {
+                TRACE_(d3d_caps)(" FOUND: ARB Float texture support\n");
+                gl_info->supported[ARB_TEXTURE_FLOAT] = TRUE;
+            } else if (strcmp(ThisExtn, "GL_ARB_half_float_pixel") == 0) {
+                TRACE_(d3d_caps)(" FOUND: ARB Half-float pixel support\n");
+                gl_info->supported[ARB_HALF_FLOAT_PIXEL] = TRUE;
             } else if (strcmp(ThisExtn, "GL_ARB_texture_border_clamp") == 0) {
                 TRACE_(d3d_caps)(" FOUND: ARB Texture border clamp support\n");
                 gl_info->supported[ARB_TEXTURE_BORDER_CLAMP] = TRUE;
@@ -1639,6 +1645,21 @@ static HRESULT WINAPI IWineD3DImpl_Check
         }
     }
 
+    if (GL_SUPPORT(ARB_TEXTURE_FLOAT)) {
+
+        BOOL half_pixel_support = GL_SUPPORT(ARB_HALF_FLOAT_PIXEL);
+
+        switch (CheckFormat) {
+            case D3DFMT_A16B16G16R16F:
+                if (!half_pixel_support) break;
+            case D3DFMT_A32B32G32R32F:
+                TRACE_(d3d_caps)("[OK]\n");
+                return WINED3D_OK;
+            default:
+                break; /* Avoid compiler warnings */
+        }
+    }
+
     /* This format is nothing special and it is supported perfectly.
      * However, ati and nvidia driver on windows do not mark this format
      * supported(tested with the dxCapsViewer) and pretending to
@@ -1729,10 +1750,8 @@ static HRESULT WINAPI IWineD3DImpl_Check
          */
         case WINED3DFMT_R16F:
         case WINED3DFMT_G16R16F:
-        case WINED3DFMT_A16B16G16R16F:
         case WINED3DFMT_R32F:
         case WINED3DFMT_G32R32F:
-        case WINED3DFMT_A32B32G32R32F:
         case WINED3DFMT_CxV8U8:
             TRACE_(d3d_caps)("[FAILED]\n"); /* Enable when implemented */
             return WINED3DERR_NOTAVAILABLE;
diff --git a/dlls/wined3d/utils.c b/dlls/wined3d/utils.c
index 48b18bd..372fdb1 100644
--- a/dlls/wined3d/utils.c
+++ b/dlls/wined3d/utils.c
@@ -49,13 +49,13 @@ static const PixelFormatDesc formats[] =
     /* IEEE formats */
     {WINED3DFMT_R32F        ,0x0        ,0x0        ,0x0        ,0x0        ,4      ,FALSE      ,0                      ,0                  ,0                              },
     {WINED3DFMT_G32R32F     ,0x0        ,0x0        ,0x0        ,0x0        ,8      ,FALSE      ,0                      ,0                  ,0                              },
-    {WINED3DFMT_A32B32G32R32F,0x0       ,0x0        ,0x0        ,0x0        ,16     ,FALSE      ,0                      ,0                  ,0                              },
+    {WINED3DFMT_A32B32G32R32F,0x0       ,0x0        ,0x0        ,0x0        ,16     ,FALSE      ,GL_RGBA32F_ARB         ,GL_RGBA            ,GL_FLOAT                       },
     /* Hmm? */
     {WINED3DFMT_CxV8U8      ,0x0        ,0x0        ,0x0        ,0x0        ,2      ,FALSE      ,0                      ,0                  ,0                              },
     /* Float */
     {WINED3DFMT_R16F        ,0x0        ,0x0        ,0x0        ,0x0        ,2      ,FALSE      ,0                      ,0                  ,0                              },
     {WINED3DFMT_G16R16F     ,0x0        ,0x0        ,0x0        ,0x0        ,4      ,FALSE      ,0                      ,0                  ,0                              },
-    {WINED3DFMT_A16B16G16R16F,0x0       ,0x0        ,0x0        ,0x0        ,8      ,FALSE      ,0                      ,0                  ,0                              },
+    {WINED3DFMT_A16B16G16R16F,0x0       ,0x0        ,0x0        ,0x0        ,8      ,FALSE      ,GL_RGBA16F_ARB         ,GL_RGBA            ,GL_HALF_FLOAT_ARB              },
     /* Palettized formats */
     {WINED3DFMT_A8P8        ,0x0000ff00 ,0x0        ,0x0        ,0x0        ,2      ,FALSE      ,0                      ,0                  ,0                              },
     {WINED3DFMT_P8          ,0x0        ,0x0        ,0x0        ,0x0        ,1      ,FALSE      ,GL_COLOR_INDEX8_EXT    ,GL_COLOR_INDEX     ,GL_UNSIGNED_BYTE               },
diff --git a/include/wine/wined3d_gl.h b/include/wine/wined3d_gl.h
index 0aa41e3..36e9a20 100644
--- a/include/wine/wined3d_gl.h
+++ b/include/wine/wined3d_gl.h
@@ -473,6 +473,17 @@ #define GL_EXT_texture_env_dot3 1
 #define GL_DOT3_RGB_EXT                   0x8740
 #define GL_DOT3_RGBA_EXT                  0x8741
 #endif
+/* GL_ARB_texture_float */
+#ifndef GL_ARB_texture_float
+#define GL_ARB_texture_float 1
+#define GL_RGBA32F_ARB                    0x8814
+#define GL_RGBA16F_ARB                    0x881A
+#endif
+/* GL_ARB_half_float_pixel */
+#ifndef GL_ARB_half_float_pixel
+#define GL_ARB_half_float_pixel
+#define GL_HALF_FLOAT_ARB                 0x140B
+#endif
 /* GL_ARB_vertex_program */
 #ifndef GL_ARB_vertex_program
 #define GL_ARB_vertex_program 1
@@ -1407,6 +1418,8 @@ typedef enum _GL_SupportedExt {
   ARB_TEXTURE_ENV_ADD,
   ARB_TEXTURE_ENV_COMBINE,
   ARB_TEXTURE_ENV_DOT3,
+  ARB_TEXTURE_FLOAT,
+  ARB_HALF_FLOAT_PIXEL,
   ARB_TEXTURE_BORDER_CLAMP,
   ARB_TEXTURE_MIRRORED_REPEAT,
   ARB_VERTEX_PROGRAM,
-- 
1.4.1