mesa: initial ARB_depth_buffer_float support

Using GL_NONE as DataType of Z32_FLOAT_X24S8, not sure what I should put there.
The spec says the type is n/a.

Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 29 insertions, 0 deletions

diff --git a/src/mesa/main/formats.c b/src/mesa/main/formats.c
index e88ba43971b..f58b1975672 100644
--- a/src/mesa/main/formats.c
+++ b/src/mesa/main/formats.c
@@ -1091,6 +1091,25 @@ static struct gl_format_info format_info[MESA_FORMAT_COUNT] =
       0, 0, 0, 0, 0,
       1, 1, 4
    },
+   /* ARB_depth_buffer_float */
+   {
+      MESA_FORMAT_Z32_FLOAT,       /* Name */
+      "MESA_FORMAT_Z32_FLOAT",     /* StrName */
+      GL_DEPTH_COMPONENT,          /* BaseFormat */
+      GL_FLOAT,                    /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 32, 0,              /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 4                      /* BlockWidth/Height,Bytes */
+   },
+   {
+      MESA_FORMAT_Z32_FLOAT_X24S8, /* Name */
+      "MESA_FORMAT_Z32_FLOAT_X24S8", /* StrName */
+      GL_DEPTH_STENCIL,            /* BaseFormat */
+      GL_NONE /* XXX */,           /* DataType */
+      0, 0, 0, 0,                  /* Red/Green/Blue/AlphaBits */
+      0, 0, 0, 32, 8,              /* Lum/Int/Index/Depth/StencilBits */
+      1, 1, 8                      /* BlockWidth/Height,Bytes */
+   },
 };
 
 
@@ -1654,6 +1673,16 @@ _mesa_format_to_type_and_comps(gl_format format,
       *comps = 1;
       return;
 
+   case MESA_FORMAT_Z32_FLOAT:
+      *datatype = GL_FLOAT;
+      *comps = 1;
+      return;
+
+   case MESA_FORMAT_Z32_FLOAT_X24S8:
+      *datatype = GL_FLOAT_32_UNSIGNED_INT_24_8_REV;
+      *comps = 1;
+      return;
+
    case MESA_FORMAT_DUDV8:
       *datatype = GL_BYTE;
       *comps = 2;