#include "glheader.h"
#include "context.h"
#include "imports.h"
#include "macros.h"
#include "s_context.h"
#include "s_logic.h"
#include "s_span.h"
#define LOGIC_OP_LOOP(MODE, MASKSTRIDE) \
do { \
GLuint i; \
switch (MODE) { \
case GL_CLEAR: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = 0; \
} \
} \
break; \
case GL_SET: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = ~0; \
} \
} \
break; \
case GL_COPY: \
\
break; \
case GL_COPY_INVERTED: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = ~src[i]; \
} \
} \
break; \
case GL_NOOP: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = dest[i]; \
} \
} \
break; \
case GL_INVERT: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = ~dest[i]; \
} \
} \
break; \
case GL_AND: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] &= dest[i]; \
} \
} \
break; \
case GL_NAND: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = ~(src[i] & dest[i]); \
} \
} \
break; \
case GL_OR: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] |= dest[i]; \
} \
} \
break; \
case GL_NOR: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = ~(src[i] | dest[i]); \
} \
} \
break; \
case GL_XOR: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] ^= dest[i]; \
} \
} \
break; \
case GL_EQUIV: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = ~(src[i] ^ dest[i]); \
} \
} \
break; \
case GL_AND_REVERSE: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = src[i] & ~dest[i]; \
} \
} \
break; \
case GL_AND_INVERTED: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = ~src[i] & dest[i]; \
} \
} \
break; \
case GL_OR_REVERSE: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = src[i] | ~dest[i]; \
} \
} \
break; \
case GL_OR_INVERTED: \
for (i = 0; i < n; i++) { \
if (mask[i / MASKSTRIDE]) { \
src[i] = ~src[i] | dest[i]; \
} \
} \
break; \
default: \
_mesa_problem(ctx, "bad logicop mode");\
} \
} while (0)
static INLINE void
logicop_uint1(GLcontext *ctx, GLuint n, GLuint src[], const GLuint dest[],
const GLubyte mask[])
{
LOGIC_OP_LOOP(ctx->Color.LogicOp, 1);
}
static INLINE void
logicop_uint2(GLcontext *ctx, GLuint n, GLuint src[], const GLuint dest[],
const GLubyte mask[])
{
LOGIC_OP_LOOP(ctx->Color.LogicOp, 2);
}
static INLINE void
logicop_uint4(GLcontext *ctx, GLuint n, GLuint src[], const GLuint dest[],
const GLubyte mask[])
{
LOGIC_OP_LOOP(ctx->Color.LogicOp, 4);
}
void
_swrast_logicop_ci_span(GLcontext *ctx, struct gl_renderbuffer *rb,
SWspan *span)
{
GLuint dest[MAX_WIDTH];
GLuint *index = span->array->index;
ASSERT(span->end < MAX_WIDTH);
ASSERT(rb->DataType == GL_UNSIGNED_INT);
if (span->arrayMask & SPAN_XY) {
_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);
}
logicop_uint1(ctx, span->end, index, dest, span->array->mask);
}
void
_swrast_logicop_rgba_span(GLcontext *ctx, struct gl_renderbuffer *rb,
SWspan *span)
{
void *rbPixels;
ASSERT(span->end < MAX_WIDTH);
ASSERT(span->arrayMask & SPAN_RGBA);
ASSERT(rb->DataType == span->array->ChanType);
rbPixels = _swrast_get_dest_rgba(ctx, rb, span);
if (span->array->ChanType == GL_UNSIGNED_BYTE) {
logicop_uint1(ctx, span->end,
(GLuint *) span->array->color.sz1.rgba,
(const GLuint *) rbPixels, span->array->mask);
}
else if (span->array->ChanType == GL_UNSIGNED_SHORT) {
logicop_uint2(ctx, 2 * span->end,
(GLuint *) span->array->color.sz2.rgba,
(const GLuint *) rbPixels, span->array->mask);
}
else {
logicop_uint4(ctx, 4 * span->end,
(GLuint *) span->array->color.sz4.rgba,
(const GLuint *) rbPixels, span->array->mask);
}
}