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dri/swrast: add support for r3g3b2

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This commit is contained in:
George Sapountzis 2008-05-23 22:54:54 +03:00
parent b4a4829cd5
commit c1d4644f48
3 changed files with 96 additions and 3 deletions
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30
src/mesa/drivers/dri/swrast/swrast.c
View file

@ -145,7 +145,11 @@ swrastFillInModes(__DRIscreen *psp,
depth_buffer_factor = 4;
back_buffer_factor = 2;
if (pixel_bits == 16) {
if (pixel_bits == 8) {
fb_format = GL_RGB;
fb_type = GL_UNSIGNED_BYTE_2_3_3_REV;
}
else if (pixel_bits == 16) {
fb_format = GL_RGB;
fb_type = GL_UNSIGNED_SHORT_5_6_5;
}
@ -173,6 +177,7 @@ driCreateNewScreen(int scrn, const __DRIextension **extensions,
{
static const __DRIextension *emptyExtensionList[] = { NULL };
__DRIscreen *psp;
__DRIconfig **configs8, **configs16, **configs32;
(void) data;
@ -187,8 +192,13 @@ driCreateNewScreen(int scrn, const __DRIextension **extensions,
psp->num = scrn;
psp->extensions = emptyExtensionList;
*driver_configs = driConcatConfigs(swrastFillInModes(psp, 16, 16, 0, 1),
swrastFillInModes(psp, 32, 24, 8, 1));
configs8 = swrastFillInModes(psp, 8, 8, 0, 1);
configs16 = swrastFillInModes(psp, 16, 16, 0, 1);
configs32 = swrastFillInModes(psp, 32, 24, 8, 1);
configs16 = (__DRIconfig **)driConcatConfigs(configs8, configs16);
*driver_configs = driConcatConfigs(configs16, configs32);
driInitExtensions( NULL, card_extensions, GL_FALSE );
@ -235,6 +245,11 @@ choose_pixel_format(const GLvisual *v)
&& v->greenMask == 0x07e0
&& v->blueMask == 0x001f)
return PF_R5G6B5;
else if (bpp == 8
&& v->redMask == 0x07
&& v->greenMask == 0x38
&& v->blueMask == 0xc0)
return PF_R3G3B2;
}
else {
if (v->indexBits == 8)
@ -347,6 +362,15 @@ swrast_new_renderbuffer(const GLvisual *visual, GLboolean front)
xrb->Base.BlueBits = 5 * sizeof(GLubyte);
xrb->Base.AlphaBits = 0;
break;
case PF_R3G3B2:
xrb->Base.InternalFormat = GL_RGB;
xrb->Base._BaseFormat = GL_RGB;
xrb->Base.DataType = GL_UNSIGNED_BYTE;
xrb->Base.RedBits = 3 * sizeof(GLubyte);
xrb->Base.GreenBits = 3 * sizeof(GLubyte);
xrb->Base.BlueBits = 2 * sizeof(GLubyte);
xrb->Base.AlphaBits = 0;
break;
case PF_CI8:
xrb->Base.InternalFormat = GL_COLOR_INDEX8_EXT;
xrb->Base._BaseFormat = GL_COLOR_INDEX;

1
src/mesa/drivers/dri/swrast/swrast_priv.h
View file

@ -111,6 +111,7 @@ swrast_renderbuffer(struct gl_renderbuffer *rb)
#define PF_CI8 1 /**< Color Index mode */
#define PF_A8R8G8B8 2 /**< 32-bit TrueColor: 8-A, 8-R, 8-G, 8-B bits */
#define PF_R5G6B5 3 /**< 16-bit TrueColor: 5-R, 6-G, 5-B bits */
#define PF_R3G3B2 4 /**< 8-bit TrueColor: 3-R, 3-G, 2-B bits */
/* swrast_span.c */

68
src/mesa/drivers/dri/swrast/swrast_span.c
View file

@ -71,6 +71,24 @@
} while(0)
/* 8-bit BGR */
#define STORE_PIXEL_R3G3B2(DST, X, Y, VALUE) \
do { \
GLubyte *p = (GLubyte *)DST; \
*p = ( (((VALUE[RCOMP]) & 0xe0) >> 5) | \
(((VALUE[GCOMP]) & 0xe0) >> 2) | \
(((VALUE[BCOMP]) & 0xc0) >> 0) ); \
} while(0)
#define FETCH_PIXEL_R3G3B2(DST, SRC) \
do { \
GLubyte p = *(GLubyte *)SRC; \
DST[ACOMP] = 0xff; \
DST[RCOMP] = ((p << 5) & 0xe0) * 255 / 0xe0; \
DST[GCOMP] = ((p << 2) & 0xe0) * 255 / 0xe0; \
DST[BCOMP] = ((p << 0) & 0xc0) * 255 / 0xc0; \
} while(0)
/*
* Generate code for image span functions.
*/
@ -109,6 +127,22 @@
#include "swrast/s_spantemp.h"
/* 8-bit BGR */
#define NAME(FUNC) FUNC##_R3G3B2
#define RB_TYPE GLubyte
#define SPAN_VARS \
struct swrast_renderbuffer *xrb = swrast_renderbuffer(rb);
#define INIT_PIXEL_PTR(P, X, Y) \
GLubyte *P = (GLubyte *)xrb->Base.Data + YFLIP(xrb, Y) * xrb->pitch + (X) * 1;
#define INC_PIXEL_PTR(P) P += 1
#define STORE_PIXEL(DST, X, Y, VALUE) \
STORE_PIXEL_R3G3B2(DST, X, Y, VALUE)
#define FETCH_PIXEL(DST, SRC) \
FETCH_PIXEL_R3G3B2(DST, SRC)
#include "swrast/s_spantemp.h"
/* 8-bit color index */
#define NAME(FUNC) FUNC##_CI8
#define CI_MODE
@ -164,6 +198,22 @@
#include "swrast_spantemp.h"
/* 8-bit BGR */
#define NAME(FUNC) FUNC##_R3G3B2_pixmap
#define RB_TYPE GLubyte
#define SPAN_VARS \
struct swrast_renderbuffer *xrb = swrast_renderbuffer(rb);
#define INIT_PIXEL_PTR(P, X, Y) \
GLubyte *P = (GLubyte *)row;
#define INC_PIXEL_PTR(P) P += 1
#define STORE_PIXEL(DST, X, Y, VALUE) \
STORE_PIXEL_R3G3B2(DST, X, Y, VALUE)
#define FETCH_PIXEL(DST, SRC) \
FETCH_PIXEL_R3G3B2(DST, SRC)
#include "swrast_spantemp.h"
/* 8-bit color index */
#define NAME(FUNC) FUNC##_CI8_pixmap
#define CI_MODE
@ -210,6 +260,15 @@ swrast_set_span_funcs_ximage(struct swrast_renderbuffer *xrb,
xrb->Base.PutValues = put_values_R5G6B5;
xrb->Base.PutMonoValues = put_mono_values_R5G6B5;
break;
case PF_R3G3B2:
xrb->Base.GetRow = get_row_R3G3B2;
xrb->Base.GetValues = get_values_R3G3B2;
xrb->Base.PutRow = put_row_R3G3B2;
xrb->Base.PutRowRGB = put_row_rgb_R3G3B2;
xrb->Base.PutMonoRow = put_mono_row_R3G3B2;
xrb->Base.PutValues = put_values_R3G3B2;
xrb->Base.PutMonoValues = put_mono_values_R3G3B2;
break;
case PF_CI8:
xrb->Base.GetRow = get_row_CI8;
xrb->Base.GetValues = get_values_CI8;
@ -256,6 +315,15 @@ swrast_set_span_funcs_pixmap(struct swrast_renderbuffer *xrb,
xrb->Base.PutValues = put_values_R5G6B5_pixmap;
xrb->Base.PutMonoValues = put_mono_values_R5G6B5_pixmap;
break;
case PF_R3G3B2:
xrb->Base.GetRow = get_row_R3G3B2_pixmap;
xrb->Base.GetValues = get_values_R3G3B2_pixmap;
xrb->Base.PutRow = put_row_R3G3B2_pixmap;
xrb->Base.PutRowRGB = put_row_rgb_R3G3B2_pixmap;
xrb->Base.PutMonoRow = put_mono_row_R3G3B2_pixmap;
xrb->Base.PutValues = put_values_R3G3B2_pixmap;
xrb->Base.PutMonoValues = put_mono_values_R3G3B2_pixmap;
break;
case PF_CI8:
xrb->Base.GetRow = get_row_CI8_pixmap;
xrb->Base.GetValues = get_values_CI8_pixmap;