diff options
Diffstat (limited to 'mesalib/src/mesa/swrast/s_renderbuffer.c')
| -rw-r--r-- | mesalib/src/mesa/swrast/s_renderbuffer.c | 1241 |
1 files changed, 166 insertions, 1075 deletions
diff --git a/mesalib/src/mesa/swrast/s_renderbuffer.c b/mesalib/src/mesa/swrast/s_renderbuffer.c index 1a7cb36d9..637a7b6dc 100644 --- a/mesalib/src/mesa/swrast/s_renderbuffer.c +++ b/mesalib/src/mesa/swrast/s_renderbuffer.c @@ -37,1048 +37,10 @@ #include "main/formats.h" #include "main/mtypes.h" #include "main/renderbuffer.h" +#include "swrast/s_context.h" #include "swrast/s_renderbuffer.h" -/* - * Routines for get/put values in common buffer formats follow. - */ - -/* Returns a bytes per pixel of the DataType in the get/put span - * functions for at least a subset of the available combinations a - * renderbuffer can have. - * - * It would be nice to see gl_renderbuffer start talking about a - * gl_format instead of a GLenum DataType. - */ -static int -get_datatype_bytes(struct gl_renderbuffer *rb) -{ - int component_size; - - switch (rb->DataType) { - case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: - component_size = 8; - break; - case GL_FLOAT: - case GL_UNSIGNED_INT: - case GL_UNSIGNED_INT_24_8_EXT: - component_size = 4; - break; - case GL_UNSIGNED_SHORT: - component_size = 2; - break; - case GL_UNSIGNED_BYTE: - component_size = 1; - break; - default: - component_size = 1; - assert(0); - } - - switch (rb->_BaseFormat) { - case GL_DEPTH_COMPONENT: - case GL_DEPTH_STENCIL: - return component_size; - default: - return 4 * component_size; - } -} - -/* This is commonly used by most of the accessors. */ -static void * -get_pointer_generic(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLint x, GLint y) -{ - if (!rb->Data) - return NULL; - - return ((char *) rb->Data + - (y * rb->RowStride + x) * _mesa_get_format_bytes(rb->Format)); -} - -/* GetRow() implementation for formats where DataType matches the rb->Format. - */ -static void -get_row_generic(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, void *values) -{ - void *src = rb->GetPointer(ctx, rb, x, y); - memcpy(values, src, count * _mesa_get_format_bytes(rb->Format)); -} - -/* Only used for float textures currently, but might also be used for - * RGBA8888, RGBA16, etc. - */ -static void -get_values_generic(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], void *values) -{ - int format_bytes = _mesa_get_format_bytes(rb->Format) / sizeof(GLfloat); - GLuint i; - - for (i = 0; i < count; i++) { - const void *src = rb->GetPointer(ctx, rb, x[i], y[i]); - char *dst = (char *) values + i * format_bytes; - memcpy(dst, src, format_bytes); - } -} - -/* For the GL_RED/GL_RG/GL_RGB format/DataType combinations (and - * GL_LUMINANCE/GL_INTENSITY?), the Put functions are a matter of - * storing those initial components of the value per pixel into the - * destination. - */ -static void -put_row_generic(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, - const void *values, const GLubyte *mask) -{ - void *row = rb->GetPointer(ctx, rb, x, y); - int format_bytes = _mesa_get_format_bytes(rb->Format) / sizeof(GLfloat); - int datatype_bytes = get_datatype_bytes(rb); - unsigned int i; - - if (mask) { - for (i = 0; i < count; i++) { - char *dst = (char *) row + i * format_bytes; - const char *src = (const char *) values + i * datatype_bytes; - - if (mask[i]) { - memcpy(dst, src, format_bytes); - } - } - } - else { - for (i = 0; i < count; i++) { - char *dst = (char *) row + i * format_bytes; - const char *src = (const char *) values + i * datatype_bytes; - memcpy(dst, src, format_bytes); - } - } -} - - -static void -put_values_generic(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - const void *values, const GLubyte *mask) -{ - int format_bytes = _mesa_get_format_bytes(rb->Format) / sizeof(GLfloat); - int datatype_bytes = get_datatype_bytes(rb); - unsigned int i; - - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - void *dst = rb->GetPointer(ctx, rb, x[i], y[i]); - const char *src = (const char *) values + i * datatype_bytes; - memcpy(dst, src, format_bytes); - } - } -} - - - -/********************************************************************** - * Functions for buffers of 1 X GLubyte values. - * Typically stencil. - */ - -static void -get_values_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], void *values) -{ - GLubyte *dst = (GLubyte *) values; - GLuint i; - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - for (i = 0; i < count; i++) { - const GLubyte *src = (GLubyte *) rb->Data + y[i] * rb->RowStride + x[i]; - dst[i] = *src; - } -} - - -static void -put_row_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *values, const GLubyte *mask) -{ - const GLubyte *src = (const GLubyte *) values; - GLubyte *dst = (GLubyte *) rb->Data + y * rb->RowStride + x; - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - if (mask) { - GLuint i; - for (i = 0; i < count; i++) { - if (mask[i]) { - dst[i] = src[i]; - } - } - } - else { - memcpy(dst, values, count * sizeof(GLubyte)); - } -} - - -static void -put_values_ubyte(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], - const void *values, const GLubyte *mask) -{ - const GLubyte *src = (const GLubyte *) values; - GLuint i; - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - GLubyte *dst = (GLubyte *) rb->Data + y[i] * rb->RowStride + x[i]; - *dst = src[i]; - } - } -} - - -/********************************************************************** - * Functions for buffers of 1 X GLushort values. - * Typically depth/Z. - */ - -static void -get_values_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], void *values) -{ - GLushort *dst = (GLushort *) values; - GLuint i; - ASSERT(rb->DataType == GL_UNSIGNED_SHORT); - for (i = 0; i < count; i++) { - const GLushort *src = (GLushort *) rb->Data + y[i] * rb->RowStride + x[i]; - dst[i] = *src; - } -} - - -static void -put_row_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *values, const GLubyte *mask) -{ - const GLushort *src = (const GLushort *) values; - GLushort *dst = (GLushort *) rb->Data + y * rb->RowStride + x; - ASSERT(rb->DataType == GL_UNSIGNED_SHORT); - if (mask) { - GLuint i; - for (i = 0; i < count; i++) { - if (mask[i]) { - dst[i] = src[i]; - } - } - } - else { - memcpy(dst, src, count * sizeof(GLushort)); - } -} - - -static void -put_values_ushort(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], const void *values, - const GLubyte *mask) -{ - const GLushort *src = (const GLushort *) values; - GLuint i; - ASSERT(rb->DataType == GL_UNSIGNED_SHORT); - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - GLushort *dst = (GLushort *) rb->Data + y[i] * rb->RowStride + x[i]; - *dst = src[i]; - } - } -} - - -/********************************************************************** - * Functions for buffers of 1 X GLuint values. - * Typically depth/Z or color index. - */ - -static void -get_values_uint(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], void *values) -{ - GLuint *dst = (GLuint *) values; - GLuint i; - ASSERT(rb->DataType == GL_UNSIGNED_INT || - rb->DataType == GL_UNSIGNED_INT_24_8_EXT); - for (i = 0; i < count; i++) { - const GLuint *src = (GLuint *) rb->Data + y[i] * rb->RowStride + x[i]; - dst[i] = *src; - } -} - - -static void -put_row_uint(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *values, const GLubyte *mask) -{ - const GLuint *src = (const GLuint *) values; - GLuint *dst = (GLuint *) rb->Data + y * rb->RowStride + x; - ASSERT(rb->DataType == GL_UNSIGNED_INT || - rb->DataType == GL_UNSIGNED_INT_24_8_EXT); - if (mask) { - GLuint i; - for (i = 0; i < count; i++) { - if (mask[i]) { - dst[i] = src[i]; - } - } - } - else { - memcpy(dst, src, count * sizeof(GLuint)); - } -} - - -static void -put_values_uint(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], const void *values, - const GLubyte *mask) -{ - const GLuint *src = (const GLuint *) values; - GLuint i; - ASSERT(rb->DataType == GL_UNSIGNED_INT || - rb->DataType == GL_UNSIGNED_INT_24_8_EXT); - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - GLuint *dst = (GLuint *) rb->Data + y[i] * rb->RowStride + x[i]; - *dst = src[i]; - } - } -} - - -/********************************************************************** - * Functions for buffers of 3 X GLubyte (or GLbyte) values. - * Typically color buffers. - * NOTE: the incoming and outgoing colors are RGBA! We ignore incoming - * alpha values and return 255 for outgoing alpha values. - */ - -static void * -get_pointer_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLint x, GLint y) -{ - ASSERT(rb->Format == MESA_FORMAT_RGB888); - /* No direct access since this buffer is RGB but caller will be - * treating it as if it were RGBA. - */ - return NULL; -} - - -static void -get_row_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, void *values) -{ - const GLubyte *src = ((const GLubyte *) rb->Data) + - 3 * (y * rb->RowStride + x); - GLubyte *dst = (GLubyte *) values; - GLuint i; - ASSERT(rb->Format == MESA_FORMAT_RGB888); - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - for (i = 0; i < count; i++) { - dst[i * 4 + 0] = src[i * 3 + 0]; - dst[i * 4 + 1] = src[i * 3 + 1]; - dst[i * 4 + 2] = src[i * 3 + 2]; - dst[i * 4 + 3] = 255; - } -} - - -static void -get_values_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], void *values) -{ - GLubyte *dst = (GLubyte *) values; - GLuint i; - ASSERT(rb->Format == MESA_FORMAT_RGB888); - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - for (i = 0; i < count; i++) { - const GLubyte *src - = (GLubyte *) rb->Data + 3 * (y[i] * rb->RowStride + x[i]); - dst[i * 4 + 0] = src[0]; - dst[i * 4 + 1] = src[1]; - dst[i * 4 + 2] = src[2]; - dst[i * 4 + 3] = 255; - } -} - - -static void -put_row_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *values, const GLubyte *mask) -{ - /* note: incoming values are RGB+A! */ - const GLubyte *src = (const GLubyte *) values; - GLubyte *dst = (GLubyte *) rb->Data + 3 * (y * rb->RowStride + x); - GLuint i; - ASSERT(rb->Format == MESA_FORMAT_RGB888); - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - dst[i * 3 + 0] = src[i * 4 + 0]; - dst[i * 3 + 1] = src[i * 4 + 1]; - dst[i * 3 + 2] = src[i * 4 + 2]; - } - } -} - - -static void -put_values_ubyte3(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], const void *values, - const GLubyte *mask) -{ - /* note: incoming values are RGB+A! */ - const GLubyte *src = (const GLubyte *) values; - GLuint i; - ASSERT(rb->Format == MESA_FORMAT_RGB888); - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - GLubyte *dst = (GLubyte *) rb->Data + 3 * (y[i] * rb->RowStride + x[i]); - dst[0] = src[i * 4 + 0]; - dst[1] = src[i * 4 + 1]; - dst[2] = src[i * 4 + 2]; - } - } -} - - -/********************************************************************** - * Functions for buffers of 4 X GLubyte (or GLbyte) values. - * Typically color buffers. - */ - -static void -get_values_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], void *values) -{ - /* treat 4*GLubyte as 1*GLuint */ - GLuint *dst = (GLuint *) values; - GLuint i; - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - ASSERT(rb->Format == MESA_FORMAT_RGBA8888 || - rb->Format == MESA_FORMAT_RGBA8888_REV); - for (i = 0; i < count; i++) { - const GLuint *src = (GLuint *) rb->Data + (y[i] * rb->RowStride + x[i]); - dst[i] = *src; - } -} - - -static void -put_row_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *values, const GLubyte *mask) -{ - /* treat 4*GLubyte as 1*GLuint */ - const GLuint *src = (const GLuint *) values; - GLuint *dst = (GLuint *) rb->Data + (y * rb->RowStride + x); - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - ASSERT(rb->Format == MESA_FORMAT_RGBA8888 || - rb->Format == MESA_FORMAT_RGBA8888_REV); - if (mask) { - GLuint i; - for (i = 0; i < count; i++) { - if (mask[i]) { - dst[i] = src[i]; - } - } - } - else { - memcpy(dst, src, 4 * count * sizeof(GLubyte)); - } -} - - -static void -put_values_ubyte4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], const void *values, - const GLubyte *mask) -{ - /* treat 4*GLubyte as 1*GLuint */ - const GLuint *src = (const GLuint *) values; - GLuint i; - ASSERT(rb->DataType == GL_UNSIGNED_BYTE); - ASSERT(rb->Format == MESA_FORMAT_RGBA8888 || - rb->Format == MESA_FORMAT_RGBA8888_REV); - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - GLuint *dst = (GLuint *) rb->Data + (y[i] * rb->RowStride + x[i]); - *dst = src[i]; - } - } -} - - -/********************************************************************** - * Functions for buffers of 4 X GLushort (or GLshort) values. - * Typically accum buffer. - */ - -static void -get_values_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], void *values) -{ - GLushort *dst = (GLushort *) values; - GLuint i; - ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT); - for (i = 0; i < count; i++) { - const GLushort *src - = (GLushort *) rb->Data + 4 * (y[i] * rb->RowStride + x[i]); - dst[i] = *src; - } -} - - -static void -put_row_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, const void *values, const GLubyte *mask) -{ - const GLushort *src = (const GLushort *) values; - GLushort *dst = (GLushort *) rb->Data + 4 * (y * rb->RowStride + x); - ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT); - if (mask) { - GLuint i; - for (i = 0; i < count; i++) { - if (mask[i]) { - dst[i * 4 + 0] = src[i * 4 + 0]; - dst[i * 4 + 1] = src[i * 4 + 1]; - dst[i * 4 + 2] = src[i * 4 + 2]; - dst[i * 4 + 3] = src[i * 4 + 3]; - } - } - } - else { - memcpy(dst, src, 4 * count * sizeof(GLushort)); - } -} - - -static void -put_values_ushort4(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], const void *values, - const GLubyte *mask) -{ - const GLushort *src = (const GLushort *) values; - GLuint i; - ASSERT(rb->DataType == GL_UNSIGNED_SHORT || rb->DataType == GL_SHORT); - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - GLushort *dst = - ((GLushort *) rb->Data) + 4 * (y[i] * rb->RowStride + x[i]); - dst[0] = src[i * 4 + 0]; - dst[1] = src[i * 4 + 1]; - dst[2] = src[i * 4 + 2]; - dst[3] = src[i * 4 + 3]; - } - } -} - - -/********************************************************************** - * Functions for MESA_FORMAT_R8. - */ -static void -get_row_r8(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, void *values) -{ - const GLubyte *src = rb->GetPointer(ctx, rb, x, y); - GLuint *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - dst[i] = 0xff000000 | src[i]; - } -} - -static void -get_values_r8(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], void *values) -{ - GLuint *dst = (GLuint *) values; - GLuint i; - - for (i = 0; i < count; i++) { - const GLubyte *src = rb->GetPointer(ctx, rb, x[i], y[i]); - dst[i] = 0xff000000 | *src; - } -} - -/********************************************************************** - * Functions for MESA_FORMAT_GR88. - */ -static void -get_row_rg88(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, void *values) -{ - const GLushort *src = rb->GetPointer(ctx, rb, x, y); - GLuint *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - dst[i] = 0xff000000 | src[i]; - } -} - -static void -get_values_rg88(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], void *values) -{ - GLuint *dst = (GLuint *) values; - GLuint i; - - for (i = 0; i < count; i++) { - const GLshort *src = rb->GetPointer(ctx, rb, x[i], y[i]); - dst[i] = 0xff000000 | *src; - } -} - -/********************************************************************** - * Functions for MESA_FORMAT_R16. - */ -static void -get_row_r16(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, void *values) -{ - const GLushort *src = rb->GetPointer(ctx, rb, x, y); - GLushort *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - dst[i * 4 + RCOMP] = src[i]; - dst[i * 4 + GCOMP] = 0; - dst[i * 4 + BCOMP] = 0; - dst[i * 4 + ACOMP] = 0xffff; - } -} - -static void -get_values_r16(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - const GLint x[], const GLint y[], void *values) -{ - GLushort *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - const GLushort *src = rb->GetPointer(ctx, rb, x[i], y[i]); - dst[i * 4 + RCOMP] = *src; - dst[i * 4 + GCOMP] = 0; - dst[i * 4 + BCOMP] = 0; - dst[i * 4 + ACOMP] = 0xffff; - } -} - -/********************************************************************** - * Functions for MESA_FORMAT_RG1616. - */ -static void -get_row_rg1616(struct gl_context *ctx, struct gl_renderbuffer *rb, GLuint count, - GLint x, GLint y, void *values) -{ - const GLushort *src = rb->GetPointer(ctx, rb, x, y); - GLushort *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - dst[i * 4 + RCOMP] = src[i * 2]; - dst[i * 4 + GCOMP] = src[i * 2 + 1]; - dst[i * 4 + BCOMP] = 0; - dst[i * 4 + ACOMP] = 0xffff; - } -} - -static void -get_values_rg1616(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], void *values) -{ - GLushort *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - const GLshort *src = rb->GetPointer(ctx, rb, x[i], y[i]); - dst[i * 4 + RCOMP] = src[0]; - dst[i * 4 + GCOMP] = src[1]; - dst[i * 4 + BCOMP] = 0; - dst[i * 4 + ACOMP] = 0xffff; - } -} - -/********************************************************************** - * Functions for MESA_FORMAT_INTENSITY_FLOAT32. - */ -static void -get_row_i_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, void *values) -{ - const GLfloat *src = rb->GetPointer(ctx, rb, x, y); - GLfloat *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - dst[i * 4 + RCOMP] = - dst[i * 4 + GCOMP] = - dst[i * 4 + BCOMP] = - dst[i * 4 + ACOMP] = src[i]; - } -} - -static void -get_values_i_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - void *values) -{ - GLfloat *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - const GLfloat *src = rb->GetPointer(ctx, rb, x[i], y[i]); - dst[i * 4 + RCOMP] = - dst[i * 4 + GCOMP] = - dst[i * 4 + BCOMP] = - dst[i * 4 + ACOMP] = src[0]; - } -} - -/********************************************************************** - * Functions for MESA_FORMAT_LUMINANCE_FLOAT32. - */ -static void -get_row_l_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, void *values) -{ - const GLfloat *src = rb->GetPointer(ctx, rb, x, y); - GLfloat *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - dst[i * 4 + RCOMP] = - dst[i * 4 + GCOMP] = - dst[i * 4 + BCOMP] = src[i]; - dst[i * 4 + ACOMP] = 1.0; - } -} - -static void -get_values_l_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - void *values) -{ - GLfloat *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - const GLfloat *src = rb->GetPointer(ctx, rb, x[i], y[i]); - dst[i * 4 + RCOMP] = - dst[i * 4 + GCOMP] = - dst[i * 4 + BCOMP] = src[0]; - dst[i * 4 + ACOMP] = 1.0; - } -} - -/********************************************************************** - * Functions for MESA_FORMAT_ALPHA_FLOAT32. - */ -static void -get_row_a_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, void *values) -{ - const GLfloat *src = rb->GetPointer(ctx, rb, x, y); - GLfloat *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - dst[i * 4 + RCOMP] = 0.0; - dst[i * 4 + GCOMP] = 0.0; - dst[i * 4 + BCOMP] = 0.0; - dst[i * 4 + ACOMP] = src[i]; - } -} - -static void -get_values_a_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - void *values) -{ - GLfloat *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - const GLfloat *src = rb->GetPointer(ctx, rb, x[i], y[i]); - dst[i * 4 + RCOMP] = 0.0; - dst[i * 4 + GCOMP] = 0.0; - dst[i * 4 + BCOMP] = 0.0; - dst[i * 4 + ACOMP] = src[0]; - } -} - -static void -put_row_a_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, - const void *values, const GLubyte *mask) -{ - float *dst = rb->GetPointer(ctx, rb, x, y); - const float *src = values; - unsigned int i; - - if (mask) { - for (i = 0; i < count; i++) { - if (mask[i]) { - dst[i] = src[i * 4 + ACOMP]; - } - } - } - else { - for (i = 0; i < count; i++) { - dst[i] = src[i * 4 + ACOMP]; - } - } -} - -static void -put_values_a_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - const void *values, const GLubyte *mask) -{ - const float *src = values; - unsigned int i; - - for (i = 0; i < count; i++) { - if (!mask || mask[i]) { - float *dst = rb->GetPointer(ctx, rb, x[i], y[i]); - - *dst = src[i * 4 + ACOMP]; - } - } -} - -/********************************************************************** - * Functions for MESA_FORMAT_R_FLOAT32. - */ -static void -get_row_r_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, void *values) -{ - const GLfloat *src = rb->GetPointer(ctx, rb, x, y); - GLfloat *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - dst[i * 4 + RCOMP] = src[i]; - dst[i * 4 + GCOMP] = 0.0; - dst[i * 4 + BCOMP] = 0.0; - dst[i * 4 + ACOMP] = 1.0; - } -} - -static void -get_values_r_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - void *values) -{ - GLfloat *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - const GLfloat *src = rb->GetPointer(ctx, rb, x[i], y[i]); - dst[i * 4 + RCOMP] = src[0]; - dst[i * 4 + GCOMP] = 0.0; - dst[i * 4 + BCOMP] = 0.0; - dst[i * 4 + ACOMP] = 1.0; - } -} - -/********************************************************************** - * Functions for MESA_FORMAT_RG_FLOAT32. - */ -static void -get_row_rg_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, GLint x, GLint y, void *values) -{ - const GLfloat *src = rb->GetPointer(ctx, rb, x, y); - GLfloat *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - dst[i * 4 + RCOMP] = src[i * 2 + 0]; - dst[i * 4 + GCOMP] = src[i * 2 + 1]; - dst[i * 4 + BCOMP] = 0.0; - dst[i * 4 + ACOMP] = 1.0; - } -} - -static void -get_values_rg_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLuint count, const GLint x[], const GLint y[], - void *values) -{ - GLfloat *dst = values; - GLuint i; - - for (i = 0; i < count; i++) { - const GLfloat *src = rb->GetPointer(ctx, rb, x[i], y[i]); - dst[i * 4 + RCOMP] = src[0]; - dst[i * 4 + GCOMP] = src[1]; - dst[i * 4 + BCOMP] = 0.0; - dst[i * 4 + ACOMP] = 1.0; - } -} - -/** - * This is the default software fallback for gl_renderbuffer's span - * access functions. - * - * The assumptions are that rb->Data will be a pointer to (0,0), that pixels - * are packed in the type of rb->Format, and that subsequent rows appear - * rb->RowStride pixels later. - */ -void -_swrast_set_renderbuffer_accessors(struct gl_renderbuffer *rb) -{ - rb->GetPointer = get_pointer_generic; - rb->GetRow = get_row_generic; - - switch (rb->Format) { - case MESA_FORMAT_RGB888: - rb->DataType = GL_UNSIGNED_BYTE; - rb->GetPointer = get_pointer_ubyte3; - rb->GetRow = get_row_ubyte3; - rb->GetValues = get_values_ubyte3; - rb->PutRow = put_row_ubyte3; - rb->PutValues = put_values_ubyte3; - break; - - case MESA_FORMAT_RGBA8888: - case MESA_FORMAT_RGBA8888_REV: - rb->DataType = GL_UNSIGNED_BYTE; - rb->GetValues = get_values_ubyte4; - rb->PutRow = put_row_ubyte4; - rb->PutValues = put_values_ubyte4; - break; - - case MESA_FORMAT_R8: - rb->DataType = GL_UNSIGNED_BYTE; - rb->GetValues = get_values_r8; - rb->GetRow = get_row_r8; - rb->PutRow = put_row_generic; - rb->PutValues = put_values_generic; - break; - - case MESA_FORMAT_GR88: - rb->DataType = GL_UNSIGNED_BYTE; - rb->GetValues = get_values_rg88; - rb->GetRow = get_row_rg88; - rb->PutRow = put_row_generic; - rb->PutValues = put_values_generic; - break; - - case MESA_FORMAT_R16: - rb->DataType = GL_UNSIGNED_SHORT; - rb->GetValues = get_values_r16; - rb->GetRow = get_row_r16; - rb->PutRow = put_row_generic; - rb->PutValues = put_values_generic; - break; - - case MESA_FORMAT_RG1616: - rb->DataType = GL_UNSIGNED_SHORT; - rb->GetValues = get_values_rg1616; - rb->GetRow = get_row_rg1616; - rb->PutRow = put_row_generic; - rb->PutValues = put_values_generic; - break; - - case MESA_FORMAT_SIGNED_RGBA_16: - rb->DataType = GL_SHORT; - rb->GetValues = get_values_ushort4; - rb->PutRow = put_row_ushort4; - rb->PutValues = put_values_ushort4; - break; - - case MESA_FORMAT_S8: - rb->DataType = GL_UNSIGNED_BYTE; - rb->GetValues = get_values_ubyte; - rb->PutRow = put_row_ubyte; - rb->PutValues = put_values_ubyte; - break; - - case MESA_FORMAT_Z16: - rb->DataType = GL_UNSIGNED_SHORT; - rb->GetValues = get_values_ushort; - rb->PutRow = put_row_ushort; - rb->PutValues = put_values_ushort; - break; - - case MESA_FORMAT_Z32: - case MESA_FORMAT_X8_Z24: - case MESA_FORMAT_Z24_X8: - rb->DataType = GL_UNSIGNED_INT; - rb->GetValues = get_values_uint; - rb->PutRow = put_row_uint; - rb->PutValues = put_values_uint; - break; - - case MESA_FORMAT_Z24_S8: - case MESA_FORMAT_S8_Z24: - rb->DataType = GL_UNSIGNED_INT_24_8_EXT; - rb->GetValues = get_values_uint; - rb->PutRow = put_row_uint; - rb->PutValues = put_values_uint; - break; - - case MESA_FORMAT_RGBA_FLOAT32: - rb->GetRow = get_row_generic; - rb->GetValues = get_values_generic; - rb->PutRow = put_row_generic; - rb->PutValues = put_values_generic; - break; - - case MESA_FORMAT_INTENSITY_FLOAT32: - rb->GetRow = get_row_i_float32; - rb->GetValues = get_values_i_float32; - rb->PutRow = put_row_generic; - rb->PutValues = put_values_generic; - break; - - case MESA_FORMAT_LUMINANCE_FLOAT32: - rb->GetRow = get_row_l_float32; - rb->GetValues = get_values_l_float32; - rb->PutRow = put_row_generic; - rb->PutValues = put_values_generic; - break; - - case MESA_FORMAT_ALPHA_FLOAT32: - rb->GetRow = get_row_a_float32; - rb->GetValues = get_values_a_float32; - rb->PutRow = put_row_a_float32; - rb->PutValues = put_values_a_float32; - break; - - case MESA_FORMAT_RG_FLOAT32: - rb->GetRow = get_row_rg_float32; - rb->GetValues = get_values_rg_float32; - rb->PutRow = put_row_generic; - rb->PutValues = put_values_generic; - break; - - case MESA_FORMAT_R_FLOAT32: - rb->GetRow = get_row_r_float32; - rb->GetValues = get_values_r_float32; - rb->PutRow = put_row_generic; - rb->PutValues = put_values_generic; - break; - - default: - break; - } -} - /** * This is a software fallback for the gl_renderbuffer->AllocStorage * function. @@ -1089,15 +51,15 @@ _swrast_set_renderbuffer_accessors(struct gl_renderbuffer *rb) * * This one multi-purpose function can allocate stencil, depth, accum, color * or color-index buffers! - * - * This function also plugs in the appropriate GetPointer, Get/PutRow and - * Get/PutValues functions. */ static GLboolean soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb, GLenum internalFormat, GLuint width, GLuint height) { + struct swrast_renderbuffer *srb = swrast_renderbuffer(rb); + GLuint bpp; + switch (internalFormat) { case GL_RGB: case GL_R3_G3_B2: @@ -1154,34 +116,26 @@ soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb, return GL_FALSE; } - _swrast_set_renderbuffer_accessors(rb); - - ASSERT(rb->DataType); - ASSERT(rb->GetPointer); - ASSERT(rb->GetRow); - ASSERT(rb->GetValues); - ASSERT(rb->PutRow); - ASSERT(rb->PutValues); + bpp = _mesa_get_format_bytes(rb->Format); /* free old buffer storage */ - if (rb->Data) { - free(rb->Data); - rb->Data = NULL; + if (srb->Buffer) { + free(srb->Buffer); + srb->Buffer = NULL; } - rb->RowStride = width; + srb->RowStride = width * bpp; if (width > 0 && height > 0) { /* allocate new buffer storage */ - rb->Data = malloc(width * height * _mesa_get_format_bytes(rb->Format)); + srb->Buffer = malloc(srb->RowStride * height); - if (rb->Data == NULL) { + if (srb->Buffer == NULL) { rb->Width = 0; rb->Height = 0; - rb->RowStride = 0; _mesa_error(ctx, GL_OUT_OF_MEMORY, "software renderbuffer allocation (%d x %d x %d)", - width, height, _mesa_get_format_bytes(rb->Format)); + width, height, bpp); return GL_FALSE; } } @@ -1208,6 +162,22 @@ soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb, } +/** + * Called via gl_renderbuffer::Delete() + */ +static void +soft_renderbuffer_delete(struct gl_renderbuffer *rb) +{ + struct swrast_renderbuffer *srb = swrast_renderbuffer(rb); + + if (srb->Buffer) { + free(srb->Buffer); + srb->Buffer = NULL; + } + free(srb); +} + + void _swrast_map_soft_renderbuffer(struct gl_context *ctx, struct gl_renderbuffer *rb, @@ -1216,11 +186,15 @@ _swrast_map_soft_renderbuffer(struct gl_context *ctx, GLubyte **out_map, GLint *out_stride) { - GLubyte *map = rb->Data; + struct swrast_renderbuffer *srb = swrast_renderbuffer(rb); + GLubyte *map = srb->Buffer; int cpp = _mesa_get_format_bytes(rb->Format); - int stride = rb->RowStride * cpp; + int stride = rb->Width * cpp; - ASSERT(rb->Data); + if (!map) { + *out_map = NULL; + *out_stride = 0; + } map += y * stride; map += x * cpp; @@ -1247,15 +221,13 @@ _swrast_unmap_soft_renderbuffer(struct gl_context *ctx, struct gl_renderbuffer * _swrast_new_soft_renderbuffer(struct gl_context *ctx, GLuint name) { - struct gl_renderbuffer *rb = _mesa_new_renderbuffer(ctx, name); - if (rb) { - rb->AllocStorage = soft_renderbuffer_storage; - /* Normally, one would setup the PutRow, GetRow, etc functions here. - * But we're doing that in the soft_renderbuffer_storage() function - * instead. - */ + struct swrast_renderbuffer *srb = CALLOC_STRUCT(swrast_renderbuffer); + if (srb) { + _mesa_init_renderbuffer(&srb->Base, name); + srb->Base.AllocStorage = soft_renderbuffer_storage; + srb->Base.Delete = soft_renderbuffer_delete; } - return rb; + return &srb->Base; } @@ -1297,7 +269,7 @@ add_color_renderbuffers(struct gl_context *ctx, struct gl_framebuffer *fb, assert(fb->Attachment[b].Renderbuffer == NULL); - rb = _mesa_new_renderbuffer(ctx, 0); + rb = ctx->Driver.NewRenderbuffer(ctx, 0); if (!rb) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "Allocating color buffer"); return GL_FALSE; @@ -1335,7 +307,7 @@ add_depth_renderbuffer(struct gl_context *ctx, struct gl_framebuffer *fb, assert(fb->Attachment[BUFFER_DEPTH].Renderbuffer == NULL); - rb = _mesa_new_renderbuffer(ctx, 0); + rb = _swrast_new_soft_renderbuffer(ctx, 0); if (!rb) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "Allocating depth buffer"); return GL_FALSE; @@ -1380,7 +352,7 @@ add_stencil_renderbuffer(struct gl_context *ctx, struct gl_framebuffer *fb, assert(fb->Attachment[BUFFER_STENCIL].Renderbuffer == NULL); - rb = _mesa_new_renderbuffer(ctx, 0); + rb = _swrast_new_soft_renderbuffer(ctx, 0); if (!rb) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "Allocating stencil buffer"); return GL_FALSE; @@ -1405,7 +377,7 @@ add_depth_stencil_renderbuffer(struct gl_context *ctx, assert(fb->Attachment[BUFFER_DEPTH].Renderbuffer == NULL); assert(fb->Attachment[BUFFER_STENCIL].Renderbuffer == NULL); - rb = _mesa_new_renderbuffer(ctx, 0); + rb = _swrast_new_soft_renderbuffer(ctx, 0); if (!rb) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "Allocating depth+stencil buffer"); return GL_FALSE; @@ -1444,7 +416,7 @@ add_accum_renderbuffer(struct gl_context *ctx, struct gl_framebuffer *fb, assert(fb->Attachment[BUFFER_ACCUM].Renderbuffer == NULL); - rb = _mesa_new_renderbuffer(ctx, 0); + rb = _swrast_new_soft_renderbuffer(ctx, 0); if (!rb) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "Allocating accum buffer"); return GL_FALSE; @@ -1484,7 +456,7 @@ add_aux_renderbuffers(struct gl_context *ctx, struct gl_framebuffer *fb, assert(numBuffers <= MAX_AUX_BUFFERS); for (i = 0; i < numBuffers; i++) { - struct gl_renderbuffer *rb = _mesa_new_renderbuffer(ctx, 0); + struct gl_renderbuffer *rb = _swrast_new_soft_renderbuffer(ctx, 0); assert(fb->Attachment[BUFFER_AUX0 + i].Renderbuffer == NULL); @@ -1580,3 +552,122 @@ _swrast_add_soft_renderbuffers(struct gl_framebuffer *fb, } #endif } + + + +static void +map_attachment(struct gl_context *ctx, + struct gl_framebuffer *fb, + gl_buffer_index buffer) +{ + struct gl_texture_object *texObj = fb->Attachment[buffer].Texture; + struct gl_renderbuffer *rb = fb->Attachment[buffer].Renderbuffer; + struct swrast_renderbuffer *srb = swrast_renderbuffer(rb); + + if (texObj) { + /* map texture image (render to texture) */ + const GLuint level = fb->Attachment[buffer].TextureLevel; + const GLuint face = fb->Attachment[buffer].CubeMapFace; + const GLuint slice = fb->Attachment[buffer].Zoffset; + struct gl_texture_image *texImage = texObj->Image[face][level]; + if (texImage) { + ctx->Driver.MapTextureImage(ctx, texImage, slice, + 0, 0, texImage->Width, texImage->Height, + GL_MAP_READ_BIT | GL_MAP_WRITE_BIT, + &srb->Map, &srb->RowStride); + } + } + else if (rb) { + /* Map ordinary renderbuffer */ + ctx->Driver.MapRenderbuffer(ctx, rb, + 0, 0, rb->Width, rb->Height, + GL_MAP_READ_BIT | GL_MAP_WRITE_BIT, + &srb->Map, &srb->RowStride); + } + + assert(srb->Map); +} + + +static void +unmap_attachment(struct gl_context *ctx, + struct gl_framebuffer *fb, + gl_buffer_index buffer) +{ + struct gl_texture_object *texObj = fb->Attachment[buffer].Texture; + struct gl_renderbuffer *rb = fb->Attachment[buffer].Renderbuffer; + struct swrast_renderbuffer *srb = swrast_renderbuffer(rb); + + if (texObj) { + /* unmap texture image (render to texture) */ + const GLuint level = fb->Attachment[buffer].TextureLevel; + const GLuint face = fb->Attachment[buffer].CubeMapFace; + const GLuint slice = fb->Attachment[buffer].Zoffset; + struct gl_texture_image *texImage = texObj->Image[face][level]; + if (texImage) { + ctx->Driver.UnmapTextureImage(ctx, texImage, slice); + } + } + else if (rb) { + /* unmap ordinary renderbuffer */ + ctx->Driver.UnmapRenderbuffer(ctx, rb); + } + + srb->Map = NULL; +} + + +/** + * Map the renderbuffers we'll use for tri/line/point rendering. + */ +void +_swrast_map_renderbuffers(struct gl_context *ctx) +{ + struct gl_framebuffer *fb = ctx->DrawBuffer; + struct gl_renderbuffer *depthRb, *stencilRb; + GLuint buf; + + depthRb = fb->Attachment[BUFFER_DEPTH].Renderbuffer; + if (depthRb) { + /* map depth buffer */ + map_attachment(ctx, fb, BUFFER_DEPTH); + } + + stencilRb = fb->Attachment[BUFFER_STENCIL].Renderbuffer; + if (stencilRb && stencilRb != depthRb) { + /* map stencil buffer */ + map_attachment(ctx, fb, BUFFER_STENCIL); + } + + for (buf = 0; buf < fb->_NumColorDrawBuffers; buf++) { + map_attachment(ctx, fb, fb->_ColorDrawBufferIndexes[buf]); + } +} + + +/** + * Unmap renderbuffers after rendering. + */ +void +_swrast_unmap_renderbuffers(struct gl_context *ctx) +{ + struct gl_framebuffer *fb = ctx->DrawBuffer; + struct gl_renderbuffer *depthRb, *stencilRb; + GLuint buf; + + depthRb = fb->Attachment[BUFFER_DEPTH].Renderbuffer; + if (depthRb) { + /* map depth buffer */ + unmap_attachment(ctx, fb, BUFFER_DEPTH); + } + + stencilRb = fb->Attachment[BUFFER_STENCIL].Renderbuffer; + if (stencilRb && stencilRb != depthRb) { + /* map stencil buffer */ + unmap_attachment(ctx, fb, BUFFER_STENCIL); + } + + for (buf = 0; buf < fb->_NumColorDrawBuffers; buf++) { + unmap_attachment(ctx, fb, fb->_ColorDrawBufferIndexes[buf]); + } +} |