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-rw-r--r--src/mesa/swrast/s_blend.c4
-rw-r--r--src/mesa/swrast/s_depth.c11
-rw-r--r--src/mesa/swrast/s_depth.h7
-rw-r--r--src/mesa/swrast/s_logic.c6
-rw-r--r--src/mesa/swrast/s_masking.c8
-rw-r--r--src/mesa/swrast/s_span.c38
-rw-r--r--src/mesa/swrast/s_span.h7
-rw-r--r--src/mesa/swrast/s_stencil.c10
8 files changed, 69 insertions, 22 deletions
diff --git a/src/mesa/swrast/s_blend.c b/src/mesa/swrast/s_blend.c
index d34ecacbb2..d94ff3923c 100644
--- a/src/mesa/swrast/s_blend.c
+++ b/src/mesa/swrast/s_blend.c
@@ -858,8 +858,8 @@ _swrast_blend_span(GLcontext *ctx, struct gl_renderbuffer *rb,
/* Read span of current frame buffer pixels */
if (span->arrayMask & SPAN_XY) {
/* array of x/y pixel coords */
- rb->GetValues(ctx, rb, span->end, span->array->x, span->array->y,
- framebuffer);
+ _swrast_get_values(ctx, rb, span->end, span->array->x, span->array->y,
+ framebuffer, 4 * sizeof(GLchan));
}
else {
/* horizontal run of pixels */
diff --git a/src/mesa/swrast/s_depth.c b/src/mesa/swrast/s_depth.c
index 54aa040d57..c70fdeabb5 100644
--- a/src/mesa/swrast/s_depth.c
+++ b/src/mesa/swrast/s_depth.c
@@ -31,6 +31,7 @@
#include "s_depth.h"
#include "s_context.h"
+#include "s_span.h"
/**
@@ -1076,14 +1077,14 @@ depth_test_pixels( GLcontext *ctx, struct sw_span *span )
/* read depth values from buffer, test, write back */
if (rb->DataType == GL_UNSIGNED_SHORT) {
GLushort zbuffer[MAX_WIDTH];
- rb->GetValues(ctx, rb, count, x, y, zbuffer);
+ _swrast_get_values(ctx, rb, count, x, y, zbuffer, sizeof(GLushort));
depth_test_span16(ctx, count, zbuffer, z, mask );
rb->PutValues(ctx, rb, count, x, y, zbuffer, NULL);
}
else {
GLuint zbuffer[MAX_WIDTH];
ASSERT(rb->DataType == GL_UNSIGNED_INT);
- rb->GetValues(ctx, rb, count, x, y, zbuffer);
+ _swrast_get_values(ctx, rb, count, x, y, zbuffer, sizeof(GLuint));
depth_test_span32(ctx, count, zbuffer, z, mask );
rb->PutValues(ctx, rb, count, x, y, zbuffer, NULL);
}
@@ -1130,7 +1131,8 @@ _swrast_depth_bounds_test( GLcontext *ctx, struct sw_span *span )
/* get 16-bit values */
GLushort zbuffer16[MAX_WIDTH], *zbuffer;
if (span->arrayMask & SPAN_XY) {
- rb->GetValues(ctx, rb, count, span->array->x, span->array->y, zbuffer16);
+ _swrast_get_values(ctx, rb, count, span->array->x, span->array->y,
+ zbuffer16, sizeof(GLushort));
zbuffer = zbuffer16;
}
else {
@@ -1156,7 +1158,8 @@ _swrast_depth_bounds_test( GLcontext *ctx, struct sw_span *span )
/* get 32-bit values */
GLuint zbuffer32[MAX_WIDTH], *zbuffer;
if (span->arrayMask & SPAN_XY) {
- rb->GetValues(ctx, rb, count, span->array->x, span->array->y, zbuffer32);
+ _swrast_get_values(ctx, rb, count, span->array->x, span->array->y,
+ zbuffer32, sizeof(GLuint));
zbuffer = zbuffer32;
}
else {
diff --git a/src/mesa/swrast/s_depth.h b/src/mesa/swrast/s_depth.h
index 2229e8a22d..a5856151f0 100644
--- a/src/mesa/swrast/s_depth.h
+++ b/src/mesa/swrast/s_depth.h
@@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
- * Version: 6.3
+ * Version: 6.5
*
* Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
*
@@ -40,11 +40,6 @@ _swrast_depth_bounds_test( GLcontext *ctx, struct sw_span *span );
extern void
-_swrast_read_depth_span( GLcontext *ctx, struct gl_renderbuffer *rb,
- GLint n, GLint x, GLint y, GLuint depth[] );
-
-
-extern void
_swrast_read_depth_span_float( GLcontext *ctx, struct gl_renderbuffer *rb,
GLint n, GLint x, GLint y, GLfloat depth[] );
diff --git a/src/mesa/swrast/s_logic.c b/src/mesa/swrast/s_logic.c
index 05e2e0ade4..ff3c3fc2f1 100644
--- a/src/mesa/swrast/s_logic.c
+++ b/src/mesa/swrast/s_logic.c
@@ -192,7 +192,8 @@ _swrast_logicop_ci_span(GLcontext *ctx, struct gl_renderbuffer *rb,
/* Read dest values from frame buffer */
if (span->arrayMask & SPAN_XY) {
- rb->GetValues(ctx, rb, span->end, span->array->x, span->array->y, dest);
+ _swrast_get_values(ctx, rb, span->end, span->array->x, span->array->y,
+ dest, sizeof(GLuint));
}
else {
rb->GetRow(ctx, rb, span->end, span->x, span->y, dest);
@@ -218,7 +219,8 @@ _swrast_logicop_rgba_span(GLcontext *ctx, struct gl_renderbuffer *rb,
ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
if (span->arrayMask & SPAN_XY) {
- rb->GetValues(ctx, rb, span->end, span->array->x, span->array->y, dest);
+ _swrast_get_values(ctx, rb, span->end, span->array->x, span->array->y,
+ dest, 4 * sizeof(GLchan));
}
else {
_swrast_read_rgba_span(ctx, rb, span->end, span->x, span->y, dest);
diff --git a/src/mesa/swrast/s_masking.c b/src/mesa/swrast/s_masking.c
index 391dfde7a1..65c4e7d01c 100644
--- a/src/mesa/swrast/s_masking.c
+++ b/src/mesa/swrast/s_masking.c
@@ -61,7 +61,8 @@ _swrast_mask_rgba_span(GLcontext *ctx, struct gl_renderbuffer *rb,
ASSERT(span->arrayMask & SPAN_RGBA);
if (span->arrayMask & SPAN_XY) {
- rb->GetValues(ctx, rb, n, span->array->x, span->array->y, dest);
+ _swrast_get_values(ctx, rb, n, span->array->x, span->array->y,
+ dest, 4 * sizeof(GLchan));
}
else {
_swrast_read_rgba_span(ctx, rb, n, span->x, span->y, dest);
@@ -134,11 +135,12 @@ _swrast_mask_ci_span(GLcontext *ctx, struct gl_renderbuffer *rb,
GLuint i;
ASSERT(span->arrayMask & SPAN_INDEX);
- ASSERT(span->end < MAX_WIDTH);
+ ASSERT(span->end <= MAX_WIDTH);
ASSERT(rb->DataType == GL_UNSIGNED_INT);
if (span->arrayMask & SPAN_XY) {
- rb->GetValues(ctx, rb, span->end, span->array->x, span->array->y, dest);
+ _swrast_get_values(ctx, rb, span->end, span->array->x, span->array->y,
+ dest, sizeof(GLuint));
}
else {
_swrast_read_index_span(ctx, rb, span->end, span->x, span->y, dest);
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
index 780f1b6399..a9f6684a72 100644
--- a/src/mesa/swrast/s_span.c
+++ b/src/mesa/swrast/s_span.c
@@ -1436,3 +1436,41 @@ _swrast_read_index_span( GLcontext *ctx, struct gl_renderbuffer *rb,
}
}
}
+
+
+/**
+ * Wrapper for gl_renderbuffer::GetValues() which does clipping to avoid
+ * reading values outside the buffer bounds.
+ * We can use this for reading any format/type of renderbuffer.
+ * \param valueSize is the size in bytes of each value put into the
+ * values array.
+ */
+void
+_swrast_get_values(GLcontext *ctx, struct gl_renderbuffer *rb,
+ GLuint count, const GLint x[], const GLint y[],
+ void *values, GLuint valueSize)
+{
+ GLuint i, inCount = 0, inStart = 0;
+
+ for (i = 0; i < count; i++) {
+ if (x[i] >= 0 && y[i] >= 0 && x[i] < rb->Width && y[i] < rb->Height) {
+ /* inside */
+ if (inCount == 0)
+ inStart = i;
+ inCount++;
+ }
+ else {
+ if (inCount > 0) {
+ /* read [inStart, inStart + inCount) */
+ rb->GetValues(ctx, rb, inCount, x + inStart, y + inStart,
+ (GLubyte *) values + inStart * valueSize);
+ inCount = 0;
+ }
+ }
+ }
+ if (inCount > 0) {
+ /* read last values */
+ rb->GetValues(ctx, rb, inCount, x + inStart, y + inStart,
+ (GLubyte *) values + inStart * valueSize);
+ }
+}
diff --git a/src/mesa/swrast/s_span.h b/src/mesa/swrast/s_span.h
index 789010bd7f..1bba5aa53b 100644
--- a/src/mesa/swrast/s_span.h
+++ b/src/mesa/swrast/s_span.h
@@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
- * Version: 6.3
+ * Version: 6.5
*
* Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
*
@@ -67,4 +67,9 @@ extern void
_swrast_read_index_span( GLcontext *ctx, struct gl_renderbuffer *rb,
GLuint n, GLint x, GLint y, GLuint indx[] );
+extern void
+_swrast_get_values(GLcontext *ctx, struct gl_renderbuffer *rb,
+ GLuint count, const GLint x[], const GLint y[],
+ void *values, GLuint valueSize);
+
#endif
diff --git a/src/mesa/swrast/s_stencil.c b/src/mesa/swrast/s_stencil.c
index 3e1b28740a..d8e49cbe41 100644
--- a/src/mesa/swrast/s_stencil.c
+++ b/src/mesa/swrast/s_stencil.c
@@ -32,6 +32,7 @@
#include "s_context.h"
#include "s_depth.h"
#include "s_stencil.h"
+#include "s_span.h"
@@ -460,7 +461,7 @@ stencil_and_ztest_span(GLcontext *ctx, struct sw_span *span, GLuint face)
GLuint i;
/* save the current mask bits */
- MEMCPY(oldmask, mask, n * sizeof(GLubyte));
+ _mesa_memcpy(oldmask, mask, n * sizeof(GLubyte));
/* apply the depth test */
_swrast_depth_test_span(ctx, span);
@@ -913,9 +914,10 @@ stencil_and_ztest_pixels( GLcontext *ctx, struct sw_span *span, GLuint face )
GLstencil stencil[MAX_WIDTH];
GLubyte origMask[MAX_WIDTH];
- rb->GetValues(ctx, rb, n, x, y, stencil);
+ ASSERT(rb->DataType == GL_UNSIGNED_BYTE);
+ _swrast_get_values(ctx, rb, n, x, y, stencil, sizeof(GLubyte));
- MEMCPY(origMask, mask, n * sizeof(GLubyte));
+ _mesa_memcpy(origMask, mask, n * sizeof(GLubyte));
(void) do_stencil_test(ctx, face, n, stencil, mask);
@@ -969,7 +971,7 @@ stencil_and_ztest_pixels( GLcontext *ctx, struct sw_span *span, GLuint face )
GLubyte passmask[MAX_WIDTH], failmask[MAX_WIDTH], oldmask[MAX_WIDTH];
GLuint i;
- MEMCPY(oldmask, mask, n * sizeof(GLubyte));
+ _mesa_memcpy(oldmask, mask, n * sizeof(GLubyte));
_swrast_depth_test_span(ctx, span);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-01 13:51:35 +0000