/*
* Mesa 3-D graphics library
- * Version: 6.3
+ * Version: 6.5
*
* Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
*
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+/** XXX This file should be named s_clear.c */
#include "glheader.h"
#include "colormac.h"
#include "macros.h"
#include "imports.h"
#include "mtypes.h"
-#include "fbobject.h"
#include "s_accum.h"
#include "s_context.h"
static void
clear_rgba_buffer_with_masking(GLcontext *ctx, struct gl_renderbuffer *rb)
{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
const GLint x = ctx->DrawBuffer->_Xmin;
const GLint y = ctx->DrawBuffer->_Ymin;
const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
GLint i;
ASSERT(ctx->Visual.rgbMode);
+ ASSERT(rb->PutRow);
CLAMPED_FLOAT_TO_CHAN(clearColor[RCOMP], ctx->Color.ClearColor[0]);
CLAMPED_FLOAT_TO_CHAN(clearColor[GCOMP], ctx->Color.ClearColor[1]);
COPY_CHAN4(rgba[j], clearColor);
}
_swrast_mask_rgba_array( ctx, rb, width, x, y + i, rgba );
-#if NEW_RENDERBUFFER
- if (rb->PutRow) {
- rb->PutRow(ctx, rb, width, x, y + i, rgba, NULL);
- }
-#endif
-#if OLD_RENDERBUFFER
- else {
- swrast->Driver.WriteRGBASpan(ctx, rb, width, x, y + i,
- (CONST GLchan (*)[4]) rgba, NULL);
- }
-#endif
+ rb->PutRow(ctx, rb, width, x, y + i, rgba, NULL);
}
}
const GLint y = ctx->DrawBuffer->_Ymin;
const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
- GLuint span[MAX_WIDTH];
- GLubyte mask[MAX_WIDTH];
- GLint i, j;
+ GLint i;
ASSERT(!ctx->Visual.rgbMode);
+ ASSERT(rb->PutRow);
+ ASSERT(rb->DataType == GL_UNSIGNED_INT);
- MEMSET( mask, 1, width );
for (i = 0; i < height;i++) {
+ GLuint span[MAX_WIDTH];
+ GLint j;
for (j = 0; j < width;j++) {
span[j] = ctx->Color.ClearIndex;
}
_swrast_mask_ci_array(ctx, rb, width, x, y + i, span);
- ASSERT(rb->PutRow);
- ASSERT(rb->DataType == GL_UNSIGNED_INT);
- rb->PutRow(ctx, rb, width, x, y + i, span, mask);
+ rb->PutRow(ctx, rb, width, x, y + i, span, NULL);
}
}
static void
clear_rgba_buffer(GLcontext *ctx, struct gl_renderbuffer *rb)
{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
const GLint x = ctx->DrawBuffer->_Xmin;
const GLint y = ctx->DrawBuffer->_Ymin;
const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
+ GLubyte clear8[4];
+ GLushort clear16[4];
+ GLvoid *clearVal;
GLint i;
ASSERT(ctx->Visual.rgbMode);
ctx->Color.ColorMask[2] &&
ctx->Color.ColorMask[3]);
-#if NEW_RENDERBUFFER
- if (rb->PutMonoRow) { /* XXX assert this */
- GLubyte clear8[4];
- GLushort clear16[4];
- GLvoid *clearVal;
- switch (rb->DataType) {
+ ASSERT(rb->PutMonoRow);
+
+ switch (rb->DataType) {
case GL_UNSIGNED_BYTE:
- clear8[0] = FLOAT_TO_UBYTE(ctx->Color.ClearColor[0]);
- clear8[1] = FLOAT_TO_UBYTE(ctx->Color.ClearColor[1]);
- clear8[2] = FLOAT_TO_UBYTE(ctx->Color.ClearColor[2]);
- clear8[3] = FLOAT_TO_UBYTE(ctx->Color.ClearColor[3]);
+ UNCLAMPED_FLOAT_TO_UBYTE(clear8[0], ctx->Color.ClearColor[0]);
+ UNCLAMPED_FLOAT_TO_UBYTE(clear8[1], ctx->Color.ClearColor[1]);
+ UNCLAMPED_FLOAT_TO_UBYTE(clear8[2], ctx->Color.ClearColor[2]);
+ UNCLAMPED_FLOAT_TO_UBYTE(clear8[3], ctx->Color.ClearColor[3]);
clearVal = clear8;
break;
case GL_UNSIGNED_SHORT:
- clear16[0] = FLOAT_TO_USHORT(ctx->Color.ClearColor[0]);
- clear16[1] = FLOAT_TO_USHORT(ctx->Color.ClearColor[1]);
- clear16[2] = FLOAT_TO_USHORT(ctx->Color.ClearColor[2]);
- clear16[3] = FLOAT_TO_USHORT(ctx->Color.ClearColor[3]);
+ UNCLAMPED_FLOAT_TO_USHORT(clear16[0], ctx->Color.ClearColor[0]);
+ UNCLAMPED_FLOAT_TO_USHORT(clear16[1], ctx->Color.ClearColor[1]);
+ UNCLAMPED_FLOAT_TO_USHORT(clear16[2], ctx->Color.ClearColor[2]);
+ UNCLAMPED_FLOAT_TO_USHORT(clear16[3], ctx->Color.ClearColor[3]);
clearVal = clear16;
break;
case GL_FLOAT:
default:
_mesa_problem(ctx, "Bad rb DataType in clear_color_buffer");
return;
- }
- for (i = 0; i < height; i++) {
- rb->PutMonoRow(ctx, rb, width, x, y + i, clearVal, NULL);
- }
}
-#endif
-#if OLD_RENDERBUFFER
- else {
- GLchan clearColor[4];
- CLAMPED_FLOAT_TO_CHAN(clearColor[RCOMP], ctx->Color.ClearColor[0]);
- CLAMPED_FLOAT_TO_CHAN(clearColor[GCOMP], ctx->Color.ClearColor[1]);
- CLAMPED_FLOAT_TO_CHAN(clearColor[BCOMP], ctx->Color.ClearColor[2]);
- CLAMPED_FLOAT_TO_CHAN(clearColor[ACOMP], ctx->Color.ClearColor[3]);
- ASSERT(swrast->Driver.WriteRGBASpan);
- for (i = 0; i < height; i++) {
- swrast->Driver.WriteMonoRGBASpan(ctx, rb, width, x, y + i,
- clearColor, NULL );
- }
+
+ for (i = 0; i < height; i++) {
+ rb->PutMonoRow(ctx, rb, width, x, y + i, clearVal, NULL);
}
-#endif
}
const GLint y = ctx->DrawBuffer->_Ymin;
const GLint height = ctx->DrawBuffer->_Ymax - ctx->DrawBuffer->_Ymin;
const GLint width = ctx->DrawBuffer->_Xmax - ctx->DrawBuffer->_Xmin;
+ GLubyte clear8;
+ GLushort clear16;
+ GLuint clear32;
+ GLvoid *clearVal;
+ GLint i;
ASSERT(!ctx->Visual.rgbMode);
ASSERT((ctx->Color.IndexMask & ((1 << ctx->Visual.indexBits) - 1))
== (GLuint) ((1 << ctx->Visual.indexBits) - 1));
-#if NEW_RENDERBUFFER
- if (rb->PutMonoRow) { /* XXX assert this */
- GLubyte clear8;
- GLushort clear16;
- GLuint clear32;
- GLvoid *clearVal;
- GLint i;
- switch (rb->DataType) {
+ ASSERT(rb->PutMonoRow);
+
+ /* setup clear value */
+ switch (rb->DataType) {
case GL_UNSIGNED_BYTE:
clear8 = (GLubyte) ctx->Color.ClearIndex;
clearVal = &clear8;
default:
_mesa_problem(ctx, "Bad rb DataType in clear_color_buffer");
return;
- }
- for (i = 0; i < height; i++)
- rb->PutMonoRow(ctx, rb, width, x, y + i, clearVal, NULL);
}
-#endif
+
+ for (i = 0; i < height; i++)
+ rb->PutMonoRow(ctx, rb, width, x, y + i, clearVal, NULL);
}
static void
clear_color_buffers(GLcontext *ctx)
{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
GLboolean masking;
GLuint i;
for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers[0]; i++) {
struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0][i];
-#if OLD_RENDERBUFFER /* this is obsolete code */
- if (swrast->Driver.SetBuffer)
- swrast->Driver.SetBuffer(ctx, ctx->DrawBuffer,
- ctx->DrawBuffer->_ColorDrawBit[0][i]);
-#endif
-
if (ctx->Visual.rgbMode) {
if (masking) {
clear_rgba_buffer_with_masking(ctx, rb);
}
}
}
-
- /* restore default read/draw buffer */
- _swrast_use_draw_buffer(ctx);
}
/**
* Called via the device driver's ctx->Driver.Clear() function if the
* device driver can't clear one or more of the buffers itself.
- * \param mask bitwise-OR of DD_*_BIT flags.
+ * \param mask bitfield of BUFER_BIT_* values indicating which renderbuffers
+ * are to be cleared.
* \param all if GL_TRUE, clear whole buffer, else clear specified region.
*/
void
clear_color_buffers(ctx);
}
if (mask & BUFFER_BIT_DEPTH) {
- struct gl_renderbuffer *rb
- = ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
- _swrast_clear_depth_buffer(ctx, rb);
+ _swrast_clear_depth_buffer(ctx, ctx->DrawBuffer->_DepthBuffer);
}
if (mask & BUFFER_BIT_ACCUM) {
- struct gl_renderbuffer *rb
- = ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer;
- _swrast_clear_accum_buffer(ctx, rb);
+ _swrast_clear_accum_buffer(ctx,
+ ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer);
}
if (mask & BUFFER_BIT_STENCIL) {
- struct gl_renderbuffer *rb
- = ctx->DrawBuffer->Attachment[BUFFER_STENCIL].Renderbuffer;
- _swrast_clear_stencil_buffer(ctx, rb);
+ _swrast_clear_stencil_buffer(ctx, ctx->DrawBuffer->_StencilBuffer);
}
}
RENDER_FINISH(swrast,ctx);
}
-
-
-/*
- * Fallback for ctx->Driver.DrawBuffer()
- */
-void
-_swrast_DrawBuffer( GLcontext *ctx, GLenum mode )
-{
- (void) mode;
- _swrast_use_draw_buffer(ctx);
-}
-
-
-/*
- * Fallback for ctx->Driver.DrawBuffers()
- */
-void
-_swrast_DrawBuffers( GLcontext *ctx, GLsizei n, const GLenum *buffers )
-{
- _swrast_use_draw_buffer(ctx);
-}
-
-
-/*
- * Setup things so that we read/write spans from the user-designated
- * read buffer (set via glReadPixels). We usually just have to call
- * this for glReadPixels, glCopyPixels, etc.
- */
-void
-_swrast_use_read_buffer( GLcontext *ctx )
-{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
-
- /* Do this so the software-emulated alpha plane span functions work! */
- swrast->CurrentBufferBit = ctx->ReadBuffer->_ColorReadBufferMask;
- /* Tell the device driver where to read/write spans */
- swrast->Driver.SetBuffer(ctx, ctx->ReadBuffer, swrast->CurrentBufferBit);
-}
-
-
-/*
- * Setup things so that we read/write spans from the default draw buffer.
- * This is the usual mode that Mesa's software rasterizer operates in.
- */
-void
-_swrast_use_draw_buffer( GLcontext *ctx )
-{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
-
- /* The user can specify rendering to zero, one, two, or four color
- * buffers simultaneously with glDrawBuffer()!
- * We don't expect the span/point/line/triangle functions to deal with
- * that mess so we'll iterate over the multiple buffers as needed.
- * But usually we only render to one color buffer at a time.
- * We set ctx->Color._DriverDrawBuffer to that buffer and tell the
- * device driver to use that buffer.
- * Look in s_span.c's multi_write_rgba_span() function to see how
- * we loop over multiple color buffers when needed.
- */
-
- if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_FRONT_LEFT)
- swrast->CurrentBufferBit = BUFFER_BIT_FRONT_LEFT;
- else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_BACK_LEFT)
- swrast->CurrentBufferBit = BUFFER_BIT_BACK_LEFT;
- else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_FRONT_RIGHT)
- swrast->CurrentBufferBit = BUFFER_BIT_FRONT_RIGHT;
- else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_BACK_RIGHT)
- swrast->CurrentBufferBit = BUFFER_BIT_BACK_RIGHT;
- else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_AUX0)
- swrast->CurrentBufferBit = BUFFER_BIT_AUX0;
- else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_AUX1)
- swrast->CurrentBufferBit = BUFFER_BIT_AUX1;
- else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_AUX2)
- swrast->CurrentBufferBit = BUFFER_BIT_AUX2;
- else if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_AUX3)
- swrast->CurrentBufferBit = BUFFER_BIT_AUX3;
- else
- /* glDrawBuffer(GL_NONE) */
- swrast->CurrentBufferBit = BUFFER_BIT_FRONT_LEFT; /* we always have this buffer */
-
- if (swrast->Driver.SetBuffer)
- swrast->Driver.SetBuffer(ctx, ctx->DrawBuffer, swrast->CurrentBufferBit);
-}
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