mesa: remove a bunch of gl_renderbuffer fields

_ActualFormat is replaced by Format (MESA_FORMAT_x).
ColorEncoding, ComponentType, RedBits, GreenBits, BlueBits, etc. are
all replaced by MESA_FORMAT_x queries.

3 files changed, 13 insertions, 10 deletions

diff --git a/src/mesa/swrast/s_clear.c b/src/mesa/swrast/s_clear.c
index 35080fd394..002718ded8 100644
--- a/src/mesa/swrast/s_clear.c
+++ b/src/mesa/swrast/s_clear.c
@@ -24,6 +24,7 @@
 
 #include "main/glheader.h"
 #include "main/colormac.h"
+#include "main/formats.h"
 #include "main/macros.h"
 #include "main/imports.h"
 #include "main/mtypes.h"
@@ -211,9 +212,6 @@ clear_ci_buffer(GLcontext *ctx, struct gl_renderbuffer *rb)
 
    ASSERT(!ctx->Visual.rgbMode);
 
-   ASSERT((ctx->Color.IndexMask & ((1 << rb->IndexBits) - 1))
-          == (GLuint) ((1 << rb->IndexBits) - 1));
-
    ASSERT(rb->PutMonoRow);
 
    /* setup clear value */
@@ -264,8 +262,8 @@ clear_color_buffers(GLcontext *ctx)
    }
    else {
       struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0];
-      const GLuint indexBits = (1 << rb->IndexBits) - 1;
-      if ((ctx->Color.IndexMask & indexBits) == indexBits) {
+      const GLuint indexMask = (1 << _mesa_get_format_bits(rb->Format, GL_INDEX_BITS)) - 1;
+      if ((ctx->Color.IndexMask & indexMask) == indexMask) {
          masking = GL_FALSE;
       }
       else {
diff --git a/src/mesa/swrast/s_depth.c b/src/mesa/swrast/s_depth.c
index 1a428fb1a2..8073a61197 100644
--- a/src/mesa/swrast/s_depth.c
+++ b/src/mesa/swrast/s_depth.c
@@ -25,6 +25,7 @@
 
 #include "main/glheader.h"
 #include "main/context.h"
+#include "main/formats.h"
 #include "main/macros.h"
 #include "main/imports.h"
 #include "main/fbobject.h"
@@ -1298,11 +1299,15 @@ void
 _swrast_read_depth_span_uint( GLcontext *ctx, struct gl_renderbuffer *rb,
                               GLint n, GLint x, GLint y, GLuint depth[] )
 {
+   GLuint depthBits;
+
    if (!rb) {
       /* really only doing this to prevent FP exceptions later */
       _mesa_bzero(depth, n * sizeof(GLfloat));
    }
 
+   depthBits = _mesa_get_format_bits(rb->Format, GL_DEPTH_BITS);
+
    ASSERT(rb->_BaseFormat == GL_DEPTH_COMPONENT);
 
    if (y < 0 || y >= (GLint) rb->Height ||
@@ -1334,8 +1339,8 @@ _swrast_read_depth_span_uint( GLcontext *ctx, struct gl_renderbuffer *rb,
 
    if (rb->DataType == GL_UNSIGNED_INT) {
       rb->GetRow(ctx, rb, n, x, y, depth);
-      if (rb->DepthBits < 32) {
-         GLuint shift = 32 - rb->DepthBits;
+      if (depthBits < 32) {
+         GLuint shift = 32 - depthBits;
          GLint i;
          for (i = 0; i < n; i++) {
             GLuint z = depth[i];
@@ -1347,14 +1352,14 @@ _swrast_read_depth_span_uint( GLcontext *ctx, struct gl_renderbuffer *rb,
       GLushort temp[MAX_WIDTH];
       GLint i;
       rb->GetRow(ctx, rb, n, x, y, temp);
-      if (rb->DepthBits == 16) {
+      if (depthBits == 16) {
          for (i = 0; i < n; i++) {
             GLuint z = temp[i];
             depth[i] = (z << 16) | z;
          }
       }
       else {
-         GLuint shift = 16 - rb->DepthBits;
+         GLuint shift = 16 - depthBits;
          for (i = 0; i < n; i++) {
             GLuint z = temp[i];
             depth[i] = (z << (shift + 16)) | (z << shift); /* XXX lsb bits? */
diff --git a/src/mesa/swrast/s_triangle.c b/src/mesa/swrast/s_triangle.c
index f28f2c9307..005d7a4c82 100644
--- a/src/mesa/swrast/s_triangle.c
+++ b/src/mesa/swrast/s_triangle.c
@@ -891,7 +891,7 @@ fast_persp_span(GLcontext *ctx, SWspan *span,
       return;								\
    }
 #define RENDER_SPAN( span )						\
-   if (rb->DepthBits <= 16) {						\
+   if (rb->Format == MESA_FORMAT_Z16) {					\
       GLuint i;								\
       const GLushort *zRow = (const GLushort *)				\
          rb->GetPointer(ctx, rb, span.x, span.y);			\