From 33899b7c351fda77bed6dee5e5d02e31c2f7e0e5 Mon Sep 17 00:00:00 2001
From: Ian Romanick <idr@us.ibm.com>
Date: Sat, 16 Oct 2004 01:16:54 +0000
Subject: Add support for OES_read_format.  As soon as glext.h is updated with
 the enums for this extension, the changes to gl.h can be removed.

---
 src/mesa/main/context.c    |  3 +++
 src/mesa/main/extensions.c |  1 +
 src/mesa/main/get.c        | 28 ++++++++++++++++++++++++++++
 src/mesa/main/mtypes.h     |  4 ++++
 4 files changed, 36 insertions(+)

(limited to 'src')

diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 44e3fcb9ad..f90751fd09 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1114,6 +1114,9 @@ _mesa_init_constants( GLcontext *ctx )
 
    ctx->Const.MaxDrawBuffers = MAX_DRAW_BUFFERS;
 
+   ctx->Const.ColorReadFormat = GL_RGBA;
+   ctx->Const.ColorReadType = GL_UNSIGNED_BYTE;
+
    /* sanity checks */
    ASSERT(ctx->Const.MaxTextureUnits == MAX2(ctx->Const.MaxTextureImageUnits, ctx->Const.MaxTextureCoordUnits));
 }
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index a8003116fa..11c7ae5538 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -141,6 +141,7 @@ static const struct {
    { ON,  "GL_NV_texgen_reflection",           F(NV_texgen_reflection) },
    { OFF, "GL_NV_vertex_program",              F(NV_vertex_program) },
    { OFF, "GL_NV_vertex_program1_1",           F(NV_vertex_program1_1) },
+   { ON,  "GL_OES_read_format",                F(OES_read_format) },
    { OFF, "GL_SGI_color_matrix",               F(SGI_color_matrix) },
    { OFF, "GL_SGI_color_table",                F(SGI_color_table) },
    { OFF, "GL_SGI_texture_color_table",        F(SGI_texture_color_table) },
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 6eac604ea5..646e6ac20f 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -1723,6 +1723,13 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params )
          }
          break;
 
+      case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
+         *params = INT_TO_BOOL(ctx->Const.ColorReadType);
+         return;
+      case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
+         *params = INT_TO_BOOL(ctx->Const.ColorReadFormat);
+         return;
+
       default:
          _mesa_error(ctx, GL_INVALID_ENUM, "glGetBooleanv(pname=0x%x)", pname);
    }
@@ -3317,6 +3324,13 @@ _mesa_GetDoublev( GLenum pname, GLdouble *params )
          }
          break;
 
+      case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
+         *params = (GLdouble) ctx->Const.ColorReadType;
+         return;
+      case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
+         *params = (GLdouble) ctx->Const.ColorReadFormat;
+         return;
+
       default:
          _mesa_error(ctx, GL_INVALID_ENUM, "glGetDoublev(pname=0x%x)", pname);
    }
@@ -4887,6 +4901,13 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
          }
          break;
 
+      case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
+         *params = (GLfloat) ctx->Const.ColorReadType;
+         return;
+      case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
+         *params = (GLfloat) ctx->Const.ColorReadFormat;
+         return;
+
       default:
          _mesa_error(ctx, GL_INVALID_ENUM, "glGetFloatv(0x%x)", pname);
    }
@@ -6495,6 +6516,13 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
          }
          break;
 
+      case GL_IMPLEMENTATION_COLOR_READ_TYPE_OES:
+         *params = ctx->Const.ColorReadType;
+         return;
+      case GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES:
+         *params = ctx->Const.ColorReadFormat;
+         return;
+
       default:
          _mesa_error(ctx, GL_INVALID_ENUM, "glGetIntegerv(pname=0x%x)", pname);
    }
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 4086ef94be..37b940dea9 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1913,6 +1913,9 @@ struct gl_constants
    GLboolean CheckArrayBounds;
    /* GL_ARB_draw_buffers */
    GLuint MaxDrawBuffers;
+   /* GL_OES_read_format */
+   GLenum ColorReadFormat;
+   GLenum ColorReadType;
 };
 
 
@@ -2015,6 +2018,7 @@ struct gl_extensions
    GLboolean NV_texture_rectangle;
    GLboolean NV_vertex_program;
    GLboolean NV_vertex_program1_1;
+   GLboolean OES_read_format;
    GLboolean SGI_color_matrix;
    GLboolean SGI_color_table;
    GLboolean SGI_texture_color_table;
-- 
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