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authorAlan Hourihane <alanh@tungstengraphics.com>2008-12-08 14:29:50 +0000
committerAlan Hourihane <alanh@tungstengraphics.com>2008-12-08 14:29:50 +0000
commit33a1f495d4bb19288680b9812c6ec1235302d215 (patch)
treed47067fe24d530c660b75ee80cdcec72f10d9ed0 /src/mesa
parentbcd5dda4358a5e47551278477bd00d2c63415c44 (diff)
parentbdc8ac4426f00eaafbe8ca0d356563efe390294d (diff)
Merge commit 'origin/master' into gallium-0.2
Conflicts: progs/glsl/Makefile
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/drivers/dri/i915/intel_render.c25
-rw-r--r--src/mesa/drivers/dri/i915/intel_tris.c98
-rw-r--r--src/mesa/drivers/dri/i965/brw_context.h12
-rw-r--r--src/mesa/drivers/dri/i965/brw_curbe.c4
-rw-r--r--src/mesa/drivers/dri/i965/brw_draw.c103
-rw-r--r--src/mesa/drivers/dri/i965/brw_program.c2
-rw-r--r--src/mesa/drivers/dri/i965/brw_state_upload.c125
-rw-r--r--src/mesa/drivers/dri/i965/brw_vtbl.c2
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm.c6
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm.h3
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_fp.c4
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_iz.c64
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_state.c7
-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_surface_state.c5
-rw-r--r--src/mesa/drivers/dri/intel/intel_context.h1
-rw-r--r--src/mesa/drivers/dri/intel/intel_reg.h4
-rw-r--r--src/mesa/drivers/dri/intel/intel_screen.c1
-rw-r--r--src/mesa/drivers/dri/intel/intel_screen.h1
-rw-r--r--src/mesa/drivers/dri/intel/intel_tex_copy.c4
-rw-r--r--src/mesa/main/dlist.c2
-rw-r--r--src/mesa/main/extensions.c11
-rw-r--r--src/mesa/main/texcompress.c6
-rw-r--r--src/mesa/shader/prog_statevars.c5
-rw-r--r--src/mesa/swrast/s_texfilter.c1018
24 files changed, 811 insertions, 702 deletions
diff --git a/src/mesa/drivers/dri/i915/intel_render.c b/src/mesa/drivers/dri/i915/intel_render.c
index 467abe4d7c..410052b3c2 100644
--- a/src/mesa/drivers/dri/i915/intel_render.c
+++ b/src/mesa/drivers/dri/i915/intel_render.c
@@ -117,6 +117,26 @@ intelDmaPrimitive(struct intel_context *intel, GLenum prim)
intel_set_prim(intel, hw_prim[prim]);
}
+static inline GLuint intel_get_vb_max(struct intel_context *intel)
+{
+ GLuint ret;
+
+ if (intel->intelScreen->no_vbo)
+ ret = intel->batch->size - 1500;
+ else
+ ret = INTEL_VB_SIZE;
+ ret /= (intel->vertex_size * 4);
+ return ret;
+}
+
+static inline GLuint intel_get_current_max(struct intel_context *intel)
+{
+
+ if (intel->intelScreen->no_vbo)
+ return intel_get_vb_max(intel);
+ else
+ return (INTEL_VB_SIZE - intel->prim.current_offset) / (intel->vertex_size * 4);
+}
#define LOCAL_VARS struct intel_context *intel = intel_context(ctx)
#define INIT( prim ) \
@@ -126,9 +146,8 @@ do { \
#define FLUSH() INTEL_FIREVERTICES(intel)
-#define GET_SUBSEQUENT_VB_MAX_VERTS() (INTEL_VB_SIZE / (intel->vertex_size * 4))
-#define GET_CURRENT_VB_MAX_VERTS() \
- ((INTEL_VB_SIZE - intel->prim.current_offset) / (intel->vertex_size * 4))
+#define GET_SUBSEQUENT_VB_MAX_VERTS() intel_get_vb_max(intel)
+#define GET_CURRENT_VB_MAX_VERTS() intel_get_current_max(intel)
#define ALLOC_VERTS(nr) intel_get_prim_space(intel, nr)
diff --git a/src/mesa/drivers/dri/i915/intel_tris.c b/src/mesa/drivers/dri/i915/intel_tris.c
index 797d6c5858..c4708dc7ab 100644
--- a/src/mesa/drivers/dri/i915/intel_tris.c
+++ b/src/mesa/drivers/dri/i915/intel_tris.c
@@ -61,9 +61,101 @@ static void intelRenderPrimitive(GLcontext * ctx, GLenum prim);
static void intelRasterPrimitive(GLcontext * ctx, GLenum rprim,
GLuint hwprim);
+static void
+intel_flush_inline_primitive(struct intel_context *intel)
+{
+ GLuint used = intel->batch->ptr - intel->prim.start_ptr;
+
+ assert(intel->prim.primitive != ~0);
+
+/* _mesa_printf("/\n"); */
+
+ if (used < 8)
+ goto do_discard;
+
+ *(int *) intel->prim.start_ptr = (_3DPRIMITIVE |
+ intel->prim.primitive | (used / 4 - 2));
+
+ goto finished;
+
+ do_discard:
+ intel->batch->ptr -= used;
+
+ finished:
+ intel->prim.primitive = ~0;
+ intel->prim.start_ptr = 0;
+ intel->prim.flush = 0;
+}
+
+static void intel_start_inline(struct intel_context *intel, uint32_t prim)
+{
+ BATCH_LOCALS;
+ uint32_t batch_flags = LOOP_CLIPRECTS;
+
+ intel_wait_flips(intel);
+ intel->vtbl.emit_state(intel);
+
+ intel->no_batch_wrap = GL_TRUE;
+
+ /*_mesa_printf("%s *", __progname);*/
+
+ /* Emit a slot which will be filled with the inline primitive
+ * command later.
+ */
+ BEGIN_BATCH(2, batch_flags);
+ OUT_BATCH(0);
+
+ assert((intel->batch->dirty_state & (1<<1)) == 0);
+
+ intel->prim.start_ptr = intel->batch->ptr;
+ intel->prim.primitive = prim;
+ intel->prim.flush = intel_flush_inline_primitive;
+
+ OUT_BATCH(0);
+ ADVANCE_BATCH();
+
+ intel->no_batch_wrap = GL_FALSE;
+/* _mesa_printf(">"); */
+}
+
+static void intel_wrap_inline(struct intel_context *intel)
+{
+ GLuint prim = intel->prim.primitive;
+
+ intel_flush_inline_primitive(intel);
+ intel_batchbuffer_flush(intel->batch);
+ intel_start_inline(intel, prim); /* ??? */
+}
+
+static GLuint *intel_extend_inline(struct intel_context *intel, GLuint dwords)
+{
+ GLuint sz = dwords * sizeof(GLuint);
+ GLuint *ptr;
+
+ assert(intel->prim.flush == intel_flush_inline_primitive);
+
+ if (intel_batchbuffer_space(intel->batch) < sz)
+ intel_wrap_inline(intel);
+
+/* _mesa_printf("."); */
+
+ intel->vtbl.assert_not_dirty(intel);
+
+ ptr = (GLuint *) intel->batch->ptr;
+ intel->batch->ptr += sz;
+
+ return ptr;
+}
+
/** Sets the primitive type for a primitive sequence, flushing as needed. */
void intel_set_prim(struct intel_context *intel, uint32_t prim)
{
+ /* if we have no VBOs */
+
+ if (intel->intelScreen->no_vbo) {
+ intel_start_inline(intel, prim);
+ return;
+ }
if (prim != intel->prim.primitive) {
INTEL_FIREVERTICES(intel);
intel->prim.primitive = prim;
@@ -75,6 +167,10 @@ uint32_t *intel_get_prim_space(struct intel_context *intel, unsigned int count)
{
uint32_t *addr;
+ if (intel->intelScreen->no_vbo) {
+ return intel_extend_inline(intel, count * intel->vertex_size);
+ }
+
/* Check for space in the existing VB */
if (intel->prim.vb_bo == NULL ||
(intel->prim.current_offset +
@@ -155,7 +251,7 @@ void intel_flush_prim(struct intel_context *intel)
#if 0
printf("emitting %d..%d=%d vertices size %d\n", offset,
- intel->prim.current_offset, intel->prim.count,
+ intel->prim.current_offset, count,
intel->vertex_size * 4);
#endif
diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index e3904be977..77980109cd 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -133,16 +133,16 @@ struct brw_context;
#define BRW_NEW_PSP 0x800
#define BRW_NEW_METAOPS 0x1000
#define BRW_NEW_FENCE 0x2000
-#define BRW_NEW_LOCK 0x4000
-#define BRW_NEW_INDICES 0x8000
-#define BRW_NEW_VERTICES 0x10000
+#define BRW_NEW_INDICES 0x4000
+#define BRW_NEW_VERTICES 0x8000
/**
* Used for any batch entry with a relocated pointer that will be used
* by any 3D rendering.
*/
-#define BRW_NEW_BATCH 0x8000
+#define BRW_NEW_BATCH 0x10000
/** brw->depth_region updated */
-#define BRW_NEW_DEPTH_BUFFER 0x10000
+#define BRW_NEW_DEPTH_BUFFER 0x20000
+#define BRW_NEW_NR_SURFACES 0x40000
struct brw_state_flags {
/** State update flags signalled by mesa internals */
@@ -158,7 +158,6 @@ struct brw_state_flags {
struct brw_vertex_program {
struct gl_vertex_program program;
GLuint id;
- GLuint param_state; /* flags indicating state tracked by params */
};
@@ -166,7 +165,6 @@ struct brw_vertex_program {
struct brw_fragment_program {
struct gl_fragment_program program;
GLuint id;
- GLuint param_state; /* flags indicating state tracked by params */
};
diff --git a/src/mesa/drivers/dri/i965/brw_curbe.c b/src/mesa/drivers/dri/i965/brw_curbe.c
index c7bac7b0c5..fbf473abf6 100644
--- a/src/mesa/drivers/dri/i965/brw_curbe.c
+++ b/src/mesa/drivers/dri/i965/brw_curbe.c
@@ -184,8 +184,8 @@ static void prepare_constant_buffer(struct brw_context *brw)
* function will also be called whenever fp or vp changes.
*/
brw->curbe.tracked_state.dirty.mesa = (_NEW_TRANSFORM|_NEW_PROJECTION);
- brw->curbe.tracked_state.dirty.mesa |= vp->param_state;
- brw->curbe.tracked_state.dirty.mesa |= fp->param_state;
+ brw->curbe.tracked_state.dirty.mesa |= vp->program.Base.Parameters->StateFlags;
+ brw->curbe.tracked_state.dirty.mesa |= fp->program.Base.Parameters->StateFlags;
if (sz == 0) {
diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c
index f893dd6742..c3a26fc82e 100644
--- a/src/mesa/drivers/dri/i965/brw_draw.c
+++ b/src/mesa/drivers/dri/i965/brw_draw.c
@@ -49,7 +49,7 @@
#define FILE_DEBUG_FLAG DEBUG_BATCH
-static GLuint hw_prim[GL_POLYGON+1] = {
+static GLuint prim_to_hw_prim[GL_POLYGON+1] = {
_3DPRIM_POINTLIST,
_3DPRIM_LINELIST,
_3DPRIM_LINELOOP,
@@ -103,12 +103,9 @@ static GLuint brw_set_prim(struct brw_context *brw, GLenum prim)
brw->intel.reduced_primitive = reduced_prim[prim];
brw->state.dirty.brw |= BRW_NEW_REDUCED_PRIMITIVE;
}
-
- brw_validate_state(brw);
- brw_upload_state(brw);
}
- return hw_prim[prim];
+ return prim_to_hw_prim[prim];
}
@@ -123,9 +120,9 @@ static GLuint trim(GLenum prim, GLuint length)
}
-static void brw_emit_prim( struct brw_context *brw,
- const struct _mesa_prim *prim )
-
+static void brw_emit_prim(struct brw_context *brw,
+ const struct _mesa_prim *prim,
+ uint32_t hw_prim)
{
struct brw_3d_primitive prim_packet;
@@ -136,7 +133,7 @@ static void brw_emit_prim( struct brw_context *brw,
prim_packet.header.opcode = CMD_3D_PRIM;
prim_packet.header.length = sizeof(prim_packet)/4 - 2;
prim_packet.header.pad = 0;
- prim_packet.header.topology = brw_set_prim(brw, prim->mode);
+ prim_packet.header.topology = hw_prim;
prim_packet.header.indexed = prim->indexed;
prim_packet.verts_per_instance = trim(prim->mode, prim->count);
@@ -258,11 +255,15 @@ static GLboolean brw_try_draw_prims( GLcontext *ctx,
struct brw_context *brw = brw_context(ctx);
GLboolean retval = GL_FALSE;
GLboolean warn = GL_FALSE;
+ GLboolean first_time = GL_TRUE;
GLuint i;
if (ctx->NewState)
_mesa_update_state( ctx );
+ if (check_fallbacks(brw, prim, nr_prims))
+ return GL_FALSE;
+
brw_validate_textures( brw );
/* Bind all inputs, derive varying and size information:
@@ -275,6 +276,7 @@ static GLboolean brw_try_draw_prims( GLcontext *ctx,
brw->vb.min_index = min_index;
brw->vb.max_index = max_index;
brw->state.dirty.brw |= BRW_NEW_VERTICES;
+
/* Have to validate state quite late. Will rebuild tnl_program,
* which depends on varying information.
*
@@ -289,59 +291,58 @@ static GLboolean brw_try_draw_prims( GLcontext *ctx,
return GL_TRUE;
}
- /* Flush the batch if it's approaching full, so that we don't wrap while
- * we've got validated state that needs to be in the same batch as the
- * primitives. This fraction is just a guess (minimal full state plus
- * a primitive is around 512 bytes), and would be better if we had
- * an upper bound of how much we might emit in a single
- * brw_try_draw_prims().
- */
- intel_batchbuffer_require_space(intel->batch, intel->batch->size / 4,
- LOOP_CLIPRECTS);
- {
- /* Set the first primitive early, ahead of validate_state:
+ for (i = 0; i < nr_prims; i++) {
+ uint32_t hw_prim;
+
+ /* Flush the batch if it's approaching full, so that we don't wrap while
+ * we've got validated state that needs to be in the same batch as the
+ * primitives. This fraction is just a guess (minimal full state plus
+ * a primitive is around 512 bytes), and would be better if we had
+ * an upper bound of how much we might emit in a single
+ * brw_try_draw_prims().
*/
- brw_set_prim(brw, prim[0].mode);
+ intel_batchbuffer_require_space(intel->batch, intel->batch->size / 4,
+ LOOP_CLIPRECTS);
- brw_validate_state( brw );
+ hw_prim = brw_set_prim(brw, prim[i].mode);
- /* Various fallback checks:
- */
- if (brw->intel.Fallback)
- goto out;
+ if (first_time || (brw->state.dirty.brw & BRW_NEW_PRIMITIVE)) {
+ first_time = GL_FALSE;
- if (check_fallbacks( brw, prim, nr_prims ))
- goto out;
+ /* Various fallback checks: */
+ if (brw->intel.Fallback)
+ goto out;
- /* Check that we can fit our state in with our existing batchbuffer, or
- * flush otherwise.
- */
- if (dri_bufmgr_check_aperture_space(brw->state.validated_bos,
- brw->state.validated_bo_count)) {
- static GLboolean warned;
- intel_batchbuffer_flush(intel->batch);
-
- /* Validate the state after we flushed the batch (which would have
- * changed the set of dirty state). If we still fail to
- * check_aperture, warn of what's happening, but attempt to continue
- * on since it may succeed anyway, and the user would probably rather
- * see a failure and a warning than a fallback.
- */
brw_validate_state(brw);
- if (!warned &&
- dri_bufmgr_check_aperture_space(brw->state.validated_bos,
+
+ /* Check that we can fit our state in with our existing batchbuffer, or
+ * flush otherwise.
+ */
+ if (dri_bufmgr_check_aperture_space(brw->state.validated_bos,
brw->state.validated_bo_count)) {
- warn = GL_TRUE;
- warned = GL_TRUE;
+ static GLboolean warned;
+ intel_batchbuffer_flush(intel->batch);
+
+ /* Validate the state after we flushed the batch (which would have
+ * changed the set of dirty state). If we still fail to
+ * check_aperture, warn of what's happening, but attempt to continue
+ * on since it may succeed anyway, and the user would probably rather
+ * see a failure and a warning than a fallback.
+ */
+ brw_validate_state(brw);
+ if (!warned &&
+ dri_bufmgr_check_aperture_space(brw->state.validated_bos,
+ brw->state.validated_bo_count)) {
+ warn = GL_TRUE;
+ warned = GL_TRUE;
+ }
}
- }
-
- brw_upload_state(brw);
- for (i = 0; i < nr_prims; i++) {
- brw_emit_prim(brw, &prim[i]);
+ brw_upload_state(brw);
}
+ brw_emit_prim(brw, &prim[i], hw_prim);
+
retval = GL_TRUE;
}
diff --git a/src/mesa/drivers/dri/i965/brw_program.c b/src/mesa/drivers/dri/i965/brw_program.c
index c38610b24e..a18dee85e8 100644
--- a/src/mesa/drivers/dri/i965/brw_program.c
+++ b/src/mesa/drivers/dri/i965/brw_program.c
@@ -117,7 +117,6 @@ static void brwProgramStringNotify( GLcontext *ctx,
if (p == fp)
brw->state.dirty.brw |= BRW_NEW_FRAGMENT_PROGRAM;
p->id = brw->program_id++;
- p->param_state = p->program.Base.Parameters->StateFlags;
}
else if (target == GL_VERTEX_PROGRAM_ARB) {
struct brw_context *brw = brw_context(ctx);
@@ -129,7 +128,6 @@ static void brwProgramStringNotify( GLcontext *ctx,
_mesa_insert_mvp_code(ctx, &p->program);
}
p->id = brw->program_id++;
- p->param_state = p->program.Base.Parameters->StateFlags;
/* Also tell tnl about it:
*/
diff --git a/src/mesa/drivers/dri/i965/brw_state_upload.c b/src/mesa/drivers/dri/i965/brw_state_upload.c
index 7a642bd2a8..5124535f2a 100644
--- a/src/mesa/drivers/dri/i965/brw_state_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_state_upload.c
@@ -181,6 +181,118 @@ brw_clear_validated_bos(struct brw_context *brw)
brw->state.validated_bo_count = 0;
}
+struct dirty_bit_map {
+ uint32_t bit;
+ char *name;
+ uint32_t count;
+};
+
+#define DEFINE_BIT(name) {name, #name, 0}
+
+static struct dirty_bit_map mesa_bits[] = {
+ DEFINE_BIT(_NEW_MODELVIEW),
+ DEFINE_BIT(_NEW_PROJECTION),
+ DEFINE_BIT(_NEW_TEXTURE_MATRIX),
+ DEFINE_BIT(_NEW_COLOR_MATRIX),
+ DEFINE_BIT(_NEW_ACCUM),
+ DEFINE_BIT(_NEW_COLOR),
+ DEFINE_BIT(_NEW_DEPTH),
+ DEFINE_BIT(_NEW_EVAL),
+ DEFINE_BIT(_NEW_FOG),
+ DEFINE_BIT(_NEW_HINT),
+ DEFINE_BIT(_NEW_LIGHT),
+ DEFINE_BIT(_NEW_LINE),
+ DEFINE_BIT(_NEW_PIXEL),
+ DEFINE_BIT(_NEW_POINT),
+ DEFINE_BIT(_NEW_POLYGON),
+ DEFINE_BIT(_NEW_POLYGONSTIPPLE),
+ DEFINE_BIT(_NEW_SCISSOR),
+ DEFINE_BIT(_NEW_STENCIL),
+ DEFINE_BIT(_NEW_TEXTURE),
+ DEFINE_BIT(_NEW_TRANSFORM),
+ DEFINE_BIT(_NEW_VIEWPORT),
+ DEFINE_BIT(_NEW_PACKUNPACK),
+ DEFINE_BIT(_NEW_ARRAY),
+ DEFINE_BIT(_NEW_RENDERMODE),
+ DEFINE_BIT(_NEW_BUFFERS),
+ DEFINE_BIT(_NEW_MULTISAMPLE),
+ DEFINE_BIT(_NEW_TRACK_MATRIX),
+ DEFINE_BIT(_NEW_PROGRAM),
+ {0, 0, 0}
+};
+
+static struct dirty_bit_map brw_bits[] = {
+ DEFINE_BIT(BRW_NEW_URB_FENCE),
+ DEFINE_BIT(BRW_NEW_FRAGMENT_PROGRAM),
+ DEFINE_BIT(BRW_NEW_VERTEX_PROGRAM),
+ DEFINE_BIT(BRW_NEW_INPUT_DIMENSIONS),
+ DEFINE_BIT(BRW_NEW_CURBE_OFFSETS),
+ DEFINE_BIT(BRW_NEW_REDUCED_PRIMITIVE),
+ DEFINE_BIT(BRW_NEW_PRIMITIVE),
+ DEFINE_BIT(BRW_NEW_CONTEXT),
+ DEFINE_BIT(BRW_NEW_WM_INPUT_DIMENSIONS),
+ DEFINE_BIT(BRW_NEW_INPUT_VARYING),
+ DEFINE_BIT(BRW_NEW_PSP),
+ DEFINE_BIT(BRW_NEW_METAOPS),
+ DEFINE_BIT(BRW_NEW_FENCE),
+ DEFINE_BIT(BRW_NEW_INDICES),
+ DEFINE_BIT(BRW_NEW_VERTICES),
+ DEFINE_BIT(BRW_NEW_BATCH),
+ DEFINE_BIT(BRW_NEW_DEPTH_BUFFER),
+ {0, 0, 0}
+};
+
+static struct dirty_bit_map cache_bits[] = {
+ DEFINE_BIT(CACHE_NEW_CC_VP),
+ DEFINE_BIT(CACHE_NEW_CC_UNIT),
+ DEFINE_BIT(CACHE_NEW_WM_PROG),
+ DEFINE_BIT(CACHE_NEW_SAMPLER_DEFAULT_COLOR),
+ DEFINE_BIT(CACHE_NEW_SAMPLER),
+ DEFINE_BIT(CACHE_NEW_WM_UNIT),
+ DEFINE_BIT(CACHE_NEW_SF_PROG),
+ DEFINE_BIT(CACHE_NEW_SF_VP),
+ DEFINE_BIT(CACHE_NEW_SF_UNIT),
+ DEFINE_BIT(CACHE_NEW_VS_UNIT),
+ DEFINE_BIT(CACHE_NEW_VS_PROG),
+ DEFINE_BIT(CACHE_NEW_GS_UNIT),
+ DEFINE_BIT(CACHE_NEW_GS_PROG),
+ DEFINE_BIT(CACHE_NEW_CLIP_VP),
+ DEFINE_BIT(CACHE_NEW_CLIP_UNIT),
+ DEFINE_BIT(CACHE_NEW_CLIP_PROG),
+ DEFINE_BIT(CACHE_NEW_SURFACE),
+ DEFINE_BIT(CACHE_NEW_SURF_BIND),
+ {0, 0, 0}
+};
+
+
+static void
+brw_update_dirty_count(struct dirty_bit_map *bit_map, int32_t bits)
+{
+ int i;
+
+ for (i = 0; i < 32; i++) {
+ if (bit_map[i].bit == 0)
+ return;
+
+ if (bit_map[i].bit & bits)
+ bit_map[i].count++;
+ }
+}
+
+static void
+brw_print_dirty_count(struct dirty_bit_map *bit_map, int32_t bits)
+{
+ int i;
+
+ for (i = 0; i < 32; i++) {
+ if (bit_map[i].bit == 0)
+ return;
+
+ fprintf(stderr, "0x%08x: %12d (%s)\n",
+ bit_map[i].bit, bit_map[i].count, bit_map[i].name);
+ }
+}
+
/***********************************************************************
* Emit all state:
*/
@@ -246,6 +358,7 @@ void brw_upload_state(struct brw_context *brw)
{
struct brw_state_flags *state = &brw->state.dirty;
int i;
+ static int dirty_count = 0;
brw_clear_validated_bos(brw);
@@ -301,6 +414,18 @@ void brw_upload_state(struct brw_context *brw)
}
}
+ if (INTEL_DEBUG & DEBUG_STATE) {
+ brw_update_dirty_count(mesa_bits, state->mesa);
+ brw_update_dirty_count(brw_bits, state->brw);
+ brw_update_dirty_count(cache_bits, state->cache);
+ if (dirty_count++ % 1000 == 0) {
+ brw_print_dirty_count(mesa_bits, state->mesa);
+ brw_print_dirty_count(brw_bits, state->brw);
+ brw_print_dirty_count(cache_bits, state->cache);
+ fprintf(stderr, "\n");
+ }
+ }
+
if (!brw->intel.Fallback)
memset(state, 0, sizeof(*state));
}
diff --git a/src/mesa/drivers/dri/i965/brw_vtbl.c b/src/mesa/drivers/dri/i965/brw_vtbl.c
index 2d4c81274e..f7293ef423 100644
--- a/src/mesa/drivers/dri/i965/brw_vtbl.c
+++ b/src/mesa/drivers/dri/i965/brw_vtbl.c
@@ -171,8 +171,6 @@ static void brw_note_unlock( struct intel_context *intel )
struct brw_context *brw = brw_context(&intel->ctx);
brw_state_cache_check_size(brw);
-
- brw_context(&intel->ctx)->state.dirty.brw |= BRW_NEW_LOCK;
}
diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index 361312c2ca..bad76793af 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -230,12 +230,6 @@ static void brw_wm_populate_key( struct brw_context *brw,
lookup |= IZ_STENCIL_WRITE_ENABLE_BIT;
}
- /* XXX: when should this be disabled?
- */
- if (1)
- lookup |= IZ_EARLY_DEPTH_TEST_BIT;
-
-
line_aa = AA_NEVER;
/* _NEW_LINE, _NEW_POLYGON, BRW_NEW_REDUCED_PRIMITIVE */
diff --git a/src/mesa/drivers/dri/i965/brw_wm.h b/src/mesa/drivers/dri/i965/brw_wm.h
index 896390c17b..ded079695e 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.h
+++ b/src/mesa/drivers/dri/i965/brw_wm.h
@@ -49,8 +49,7 @@
#define IZ_DEPTH_TEST_ENABLE_BIT 0x8
#define IZ_STENCIL_WRITE_ENABLE_BIT 0x10
#define IZ_STENCIL_TEST_ENABLE_BIT 0x20
-#define IZ_EARLY_DEPTH_TEST_BIT 0x40
-#define IZ_BIT_MAX 0x80
+#define IZ_BIT_MAX 0x40
#define AA_NEVER 0
#define AA_SOMETIMES 1
diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c
index d3e926c328..7f7b957cbe 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_fp.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c
@@ -426,10 +426,6 @@ static struct prog_src_register search_or_add_param5(struct brw_wm_compile *c,
idx = _mesa_add_state_reference( paramList, tokens );
- /* Recalculate state dependency:
- */
- c->fp->param_state = paramList->StateFlags;
-
return src_reg(PROGRAM_STATE_VAR, idx);
}
diff --git a/src/mesa/drivers/dri/i965/brw_wm_iz.c b/src/mesa/drivers/dri/i965/brw_wm_iz.c
index 0bb5d5ba83..bd60ac9b31 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_iz.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_iz.c
@@ -52,70 +52,6 @@ const struct {
{
{ P, 0, 0, 0, 0 },
{ P, 0, 0, 0, 0 },
- { C, 0, 1, 0, 0 },
- { C, 0, 1, 0, 0 },
- { C, 1, 1, 0, 0 },
- { C, 1, 1, 0, 0 },
- { C, 0, 1, 0, 0 },
- { C, 0, 1, 0, 0 },
- { C, 1, 1, 1, 0 },
- { C, 1, 1, 1, 0 },
- { C, 0, 1, 1, 0 },
- { C, 0, 1, 1, 0 },
- { C, 1, 1, 1, 0 },
- { C, 1, 1, 1, 0 },
- { C, 0, 1, 1, 0 },
- { C, 0, 1, 1, 0 },
- { P, 0, 0, 0, 0 },
- { P, 0, 0, 0, 0 },
- { C, 0, 1, 0, 0 },
- { C, 0, 1, 0, 0 },
- { C, 1, 1, 0, 0 },
- { C, 1, 1, 0, 0 },
- { C, 0, 1, 0, 0 },
- { C, 0, 1, 0, 0 },
- { C, 1, 1, 1, 0 },
- { C, 1, 1, 1, 0 },
- { C, 0, 1, 1, 0 },
- { C, 0, 1, 1, 0 },
- { C, 1, 1, 1, 0 },
- { C, 1, 1, 1, 0 },
- { C, 0, 1, 1, 0 },
- { C, 0, 1, 1, 0 },
- { C, 0, 0, 0, 1 },
- { C, 0, 0, 0, 1 },
- { C, 0, 1, 0, 1 },
- { C, 0, 1, 0, 1 },
- { C, 1, 1, 0, 1 },
- { C, 1, 1, 0, 1 },
- { C, 0, 1, 0, 1 },
- { C, 0, 1, 0, 1 },
- { C, 1, 1, 1, 1 },
- { C, 1, 1, 1, 1 },
- { C, 0, 1, 1, 1 },
- { C, 0, 1, 1, 1 },
- { C, 1, 1, 1, 1 },
- { C, 1, 1, 1, 1 },
- { C, 0, 1, 1, 1 },
- { C, 0, 1, 1, 1 },
- { C, 0, 0, 0, 1 },
- { C, 0, 0, 0, 1 },
- { C, 0, 1, 0, 1 },
- { C, 0, 1, 0, 1 },
- { C, 1, 1, 0, 1 },
- { C, 1, 1, 0, 1 },
- { C, 0, 1, 0, 1 },
- { C, 0, 1, 0, 1 },
- { C, 1, 1, 1, 1 },
- { C, 1, 1, 1, 1 },
- { C, 0, 1, 1, 1 },
- { C, 0, 1, 1, 1 },
- { C, 1, 1, 1, 1 },
- { C, 1, 1, 1, 1 },
- { C, 0, 1, 1, 1 },
- { C, 0, 1, 1, 1 },
- { P, 0, 0, 0, 0 },
- { P, 0, 0, 0, 0 },
{ P, 0, 0, 0, 0 },
{ P, 0, 0, 0, 0 },
{ P, 0, 0, 0, 0 },
diff --git a/src/mesa/drivers/dri/i965/brw_wm_state.c b/src/mesa/drivers/dri/i965/brw_wm_state.c
index fd461618bc..5302405eda 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_state.c
@@ -88,7 +88,7 @@ wm_unit_populate_key(struct brw_context *brw, struct brw_wm_unit_key *key)
/* BRW_NEW_CURBE_OFFSETS */
key->curbe_offset = brw->curbe.wm_start;
- /* CACHE_NEW_SURFACE */
+ /* BRW_NEW_NR_SURFACEs */
key->nr_surfaces = brw->wm.nr_surfaces;
/* CACHE_NEW_SAMPLER */
@@ -281,10 +281,9 @@ const struct brw_tracked_state brw_wm_unit = {
.brw = (BRW_NEW_FRAGMENT_PROGRAM |
BRW_NEW_CURBE_OFFSETS |
- BRW_NEW_LOCK),
+ BRW_NEW_NR_SURFACES),
- .cache = (CACHE_NEW_SURFACE |
- CACHE_NEW_WM_PROG |
+ .cache = (CACHE_NEW_WM_PROG |
CACHE_NEW_SAMPLER)
},
.prepare = upload_wm_unit,
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 3790b50c97..63e14cc390 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -438,6 +438,7 @@ static void prepare_wm_surfaces(struct brw_context *brw )
GLcontext *ctx = &brw->intel.ctx;
struct intel_context *intel = &brw->intel;
GLuint i;
+ int old_nr_surfaces;
if (brw->state.nr_draw_regions > 1) {
for (i = 0; i < brw->state.nr_draw_regions; i++) {
@@ -448,6 +449,7 @@ static void prepare_wm_surfaces(struct brw_context *brw )
brw_update_region_surface(brw, brw->state.draw_regions[0], 0, GL_TRUE);
}
+ old_nr_surfaces = brw->wm.nr_surfaces;
brw->wm.nr_surfaces = MAX_DRAW_BUFFERS;
for (i = 0; i < BRW_MAX_TEX_UNIT; i++) {
@@ -473,6 +475,9 @@ static void prepare_wm_surfaces(struct brw_context *brw )
dri_bo_unreference(brw->wm.bind_bo);
brw->wm.bind_bo = brw_wm_get_binding_table(brw);
+
+ if (brw->wm.nr_surfaces != old_nr_surfaces)
+ brw->state.dirty.brw |= BRW_NEW_NR_SURFACES;
}
diff --git a/src/mesa/drivers/dri/intel/intel_context.h b/src/mesa/drivers/dri/intel/intel_context.h
index 60028f090a..ee43ed7e83 100644
--- a/src/mesa/drivers/dri/intel/intel_context.h
+++ b/src/mesa/drivers/dri/intel/intel_context.h
@@ -184,6 +184,7 @@ struct intel_context
GLuint id;
uint32_t primitive; /**< Current hardware primitive type */
void (*flush) (struct intel_context *);
+ GLubyte *start_ptr; /**< for i8xx */
dri_bo *vb_bo;
uint8_t *vb;
unsigned int start_offset; /**< Byte offset of primitive sequence */
diff --git a/src/mesa/drivers/dri/intel/intel_reg.h b/src/mesa/drivers/dri/intel/intel_reg.h
index 68d8a05b83..57ac8f0cc1 100644
--- a/src/mesa/drivers/dri/intel/intel_reg.h
+++ b/src/mesa/drivers/dri/intel/intel_reg.h
@@ -71,14 +71,14 @@
/** @{
* 915 definitions
*/
-#define S0_VB_OFFSET_MASK 0xffffffc
+#define S0_VB_OFFSET_MASK 0xffffffc0
#define S0_AUTO_CACHE_INV_DISABLE (1<<0)
/** @} */
/** @{
* 830 definitions
*/
-#define S0_VB_OFFSET_MASK_830 0xffffff8
+#define S0_VB_OFFSET_MASK_830 0xffffff80
#define S0_VB_PITCH_SHIFT_830 1
#define S0_VB_ENABLE_830 (1<<0)
/** @} */
diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c
index cf09fad745..61b55b97b5 100644
--- a/src/mesa/drivers/dri/intel/intel_screen.c
+++ b/src/mesa/drivers/dri/intel/intel_screen.c
@@ -461,6 +461,7 @@ intelCreateContext(const __GLcontextModes * mesaVis,
sharedContextPrivate);
}
} else {
+ intelScreen->no_vbo = GL_TRUE;
return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate);
}
#else
diff --git a/src/mesa/drivers/dri/intel/intel_screen.h b/src/mesa/drivers/dri/intel/intel_screen.h
index fc913da5bf..91f0d6d1ae 100644
--- a/src/mesa/drivers/dri/intel/intel_screen.h
+++ b/src/mesa/drivers/dri/intel/intel_screen.h
@@ -77,6 +77,7 @@ typedef struct
GLboolean no_hw;
+ GLboolean no_vbo;
int ttm;
dri_bufmgr *bufmgr;
diff --git a/src/mesa/drivers/dri/intel/intel_tex_copy.c b/src/mesa/drivers/dri/intel/intel_tex_copy.c
index 36446efde7..dd932aebc9 100644
--- a/src/mesa/drivers/dri/intel/intel_tex_copy.c
+++ b/src/mesa/drivers/dri/intel/intel_tex_copy.c
@@ -98,7 +98,9 @@ do_copy_texsubimage(struct intel_context *intel,
get_teximage_source(intel, internalFormat);
if (!intelImage->mt || !src) {
- DBG("%s fail %p %p\n", __FUNCTION__, intelImage->mt, src);
+ if (INTEL_DEBUG & DEBUG_FALLBACKS)
+ fprintf(stderr, "%s fail %p %p\n",
+ __FUNCTION__, intelImage->mt, src);
return GL_FALSE;
}
diff --git a/src/mesa/main/dlist.c b/src/mesa/main/dlist.c
index c7db435506..d3aee196c7 100644
--- a/src/mesa/main/dlist.c
+++ b/src/mesa/main/dlist.c
@@ -2004,7 +2004,7 @@ save_Lightfv(GLenum light, GLenum pname, const GLfloat *params)
Node *n;
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION(ctx, OPCODE_LIGHT, 6);
- if (OPCODE_LIGHT) {
+ if (n) {
GLint i, nParams;
n[1].e = light;
n[2].e = pname;
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 95bf1165f4..aa5b172123 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
- * Version: 7.1
+ * Version: 7.3
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
@@ -297,6 +297,15 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
#if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program
ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
#endif
+#if FEATURE_texture_fxt1
+ _mesa_enable_extension(ctx, "GL_3DFX_texture_compression_FXT1");
+#endif
+#if FEATURE_texture_s3tc
+ if (ctx->Mesa_DXTn) {
+ _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc");
+ _mesa_enable_extension(ctx, "GL_S3_s3tc");
+ }
+#endif
}
diff --git a/src/mesa/main/texcompress.c b/src/mesa/main/texcompress.c
index 5ad936419b..0653407048 100644
--- a/src/mesa/main/texcompress.c
+++ b/src/mesa/main/texcompress.c
@@ -151,8 +151,6 @@ _mesa_compressed_texture_size( GLcontext *ctx,
/* Textures smaller than 8x4 will effectively be made into 8x4 and
* take 16 bytes.
*/
- if (size < 16)
- size = 16;
return size;
#endif
#if FEATURE_texture_s3tc
@@ -166,8 +164,6 @@ _mesa_compressed_texture_size( GLcontext *ctx,
/* Textures smaller than 4x4 will effectively be made into 4x4 and
* take 8 bytes.
*/
- if (size < 8)
- size = 8;
return size;
case MESA_FORMAT_RGBA_DXT3:
case MESA_FORMAT_RGBA_DXT5:
@@ -179,8 +175,6 @@ _mesa_compressed_texture_size( GLcontext *ctx,
/* Textures smaller than 4x4 will effectively be made into 4x4 and
* take 16 bytes.
*/
- if (size < 16)
- size = 16;
return size;
#endif
default:
diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c
index 88fca19835..8d29acac8b 100644
--- a/src/mesa/shader/prog_statevars.c
+++ b/src/mesa/shader/prog_statevars.c
@@ -632,7 +632,7 @@ append(char *dst, const char *src)
/**
- * Convert token 'k' to a string, append it only 'dst' string.
+ * Convert token 'k' to a string, append it onto 'dst' string.
*/
static void
append_token(char *dst, gl_state_index k)
@@ -807,7 +807,8 @@ append_token(char *dst, gl_state_index k)
append(dst, "ShadowAmbient");
break;
default:
- ;
+ /* probably STATE_INTERNAL_DRIVER+i (driver private state) */
+ append(dst, "driverState");
}
}
diff --git a/src/mesa/swrast/s_texfilter.c b/src/mesa/swrast/s_texfilter.c
index 9e44fba3da..6b1dfd5d50 100644
--- a/src/mesa/swrast/s_texfilter.c
+++ b/src/mesa/swrast/s_texfilter.c
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 7.0.3
+ * Version: 7.3
*
- * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -33,6 +33,16 @@
#include "s_texfilter.h"
+/*
+ * Note, the FRAC macro has to work perfectly. Otherwise you'll sometimes
+ * see 1-pixel bands of improperly weighted linear-filtered textures.
+ * The tests/texwrap.c demo is a good test.
+ * Also note, FRAC(x) doesn't truly return the fractional part of x for x < 0.
+ * Instead, if x < 0 then FRAC(x) = 1 - true_frac(x).
+ */
+#define FRAC(f) ((f) - IFLOOR(f))
+
+
/**
* Constants for integer linear interpolation.
*/
@@ -223,257 +233,271 @@ lerp_rgba_3d(GLchan result[4], GLfloat a, GLfloat b, GLfloat c,
* Used to compute texel locations for linear sampling.
* Input:
* wrapMode = GL_REPEAT, GL_CLAMP, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_BORDER
- * S = texcoord in [0,1]
- * SIZE = width (or height or depth) of texture
+ * s = texcoord in [0,1]
+ * size = width (or height or depth) of texture
* Output:
- * U = texcoord in [0, width]
- * I0, I1 = two nearest texel indexes
+ * i0, i1 = returns two nearest texel indexes
+ * weight = returns blend factor between texels
*/
-#define COMPUTE_LINEAR_TEXEL_LOCATIONS(wrapMode, S, U, SIZE, I0, I1) \
-{ \
- switch (wrapMode) { \
- case GL_REPEAT: \
- U = S * SIZE - 0.5F; \
- if (img->_IsPowerOfTwo) { \
- I0 = IFLOOR(U) & (SIZE - 1); \
- I1 = (I0 + 1) & (SIZE - 1); \
- } \
- else { \
- I0 = REMAINDER(IFLOOR(U), SIZE); \
- I1 = REMAINDER(I0 + 1, SIZE); \
- } \
- break; \
- case GL_CLAMP_TO_EDGE: \
- if (S <= 0.0F) \
- U = 0.0F; \
- else if (S >= 1.0F) \
- U = (GLfloat) SIZE; \
- else \
- U = S * SIZE; \
- U -= 0.5F; \
- I0 = IFLOOR(U); \
- I1 = I0 + 1; \
- if (I0 < 0) \
- I0 = 0; \
- if (I1 >= (GLint) SIZE) \
- I1 = SIZE - 1; \
- break; \
- case GL_CLAMP_TO_BORDER: \
- { \
- const GLfloat min = -1.0F / (2.0F * SIZE); \
- const GLfloat max = 1.0F - min; \
- if (S <= min) \
- U = min * SIZE; \
- else if (S >= max) \
- U = max * SIZE; \
- else \
- U = S * SIZE; \
- U -= 0.5F; \
- I0 = IFLOOR(U); \
- I1 = I0 + 1; \
- } \
- break; \
- case GL_MIRRORED_REPEAT: \
- { \
- const GLint flr = IFLOOR(S); \
- if (flr & 1) \
- U = 1.0F - (S - (GLfloat) flr); /* flr is odd */ \
- else \
- U = S - (GLfloat) flr; /* flr is even */ \
- U = (U * SIZE) - 0.5F; \
- I0 = IFLOOR(U); \
- I1 = I0 + 1; \
- if (I0 < 0) \
- I0 = 0; \
- if (I1 >= (GLint) SIZE) \
- I1 = SIZE - 1; \
- } \
- break; \
- case GL_MIRROR_CLAMP_EXT: \
- U = FABSF(S); \
- if (U >= 1.0F) \
- U = (GLfloat) SIZE; \
- else \
- U *= SIZE; \
- U -= 0.5F; \
- I0 = IFLOOR(U); \
- I1 = I0 + 1; \
- break; \
- case GL_MIRROR_CLAMP_TO_EDGE_EXT: \
- U = FABSF(S); \
- if (U >= 1.0F) \
- U = (GLfloat) SIZE; \
- else \
- U *= SIZE; \
- U -= 0.5F; \
- I0 = IFLOOR(U); \
- I1 = I0 + 1; \
- if (I0 < 0) \
- I0 = 0; \
- if (I1 >= (GLint) SIZE) \
- I1 = SIZE - 1; \
- break; \
- case GL_MIRROR_CLAMP_TO_BORDER_EXT: \
- { \
- const GLfloat min = -1.0F / (2.0F * SIZE); \
- const GLfloat max = 1.0F - min; \
- U = FABSF(S); \
- if (U <= min) \
- U = min * SIZE; \
- else if (U >= max) \
- U = max * SIZE; \
- else \
- U *= SIZE; \
- U -= 0.5F; \
- I0 = IFLOOR(U); \
- I1 = I0 + 1; \
- } \
- break; \
- case GL_CLAMP: \
- if (S <= 0.0F) \
- U = 0.0F; \
- else if (S >= 1.0F) \
- U = (GLfloat) SIZE; \
- else \
- U = S * SIZE; \
- U -= 0.5F; \
- I0 = IFLOOR(U); \
- I1 = I0 + 1; \
- break; \
- default: \
- _mesa_problem(ctx, "Bad wrap mode"); \
- return; \
- } \
+static INLINE void
+linear_texel_locations(GLenum wrapMode,
+ const struct gl_texture_image *img,
+ GLint size, GLfloat s,
+ GLint *i0, GLint *i1, GLfloat *weight)
+{
+ GLfloat u;
+ switch (wrapMode) {
+ case GL_REPEAT:
+ u = s * size - 0.5F;
+ if (img->_IsPowerOfTwo) {
+ *i0 = IFLOOR(u) & (size - 1);
+ *i1 = (*i0 + 1) & (size - 1);
+ }
+ else {
+ *i0 = REMAINDER(IFLOOR(u), size);
+ *i1 = REMAINDER(*i0 + 1, size);
+ }
+ break;
+ case GL_CLAMP_TO_EDGE:
+ if (s <= 0.0F)
+ u = 0.0F;
+ else if (s >= 1.0F)
+ u = (GLfloat) size;
+ else
+ u = s * size;
+ u -= 0.5F;
+ *i0 = IFLOOR(u);
+ *i1 = *i0 + 1;
+ if (*i0 < 0)
+ *i0 = 0;
+ if (*i1 >= (GLint) size)
+ *i1 = size - 1;
+ break;
+ case GL_CLAMP_TO_BORDER:
+ {
+ const GLfloat min = -1.0F / (2.0F * size);
+ const GLfloat max = 1.0F - min;
+ if (s <= min)
+ u = min * size;
+ else if (s >= max)
+ u = max * size;
+ else
+ u = s * size;
+ u -= 0.5F;
+ *i0 = IFLOOR(u);
+ *i1 = *i0 + 1;
+ }
+ break;
+ case GL_MIRRORED_REPEAT:
+ {
+ const GLint flr = IFLOOR(s);
+ if (flr & 1)
+ u = 1.0F - (s - (GLfloat) flr);
+ else
+ u = s - (GLfloat) flr;
+ u = (u * size) - 0.5F;
+ *i0 = IFLOOR(u);
+ *i1 = *i0 + 1;
+ if (*i0 < 0)
+ *i0 = 0;
+ if (*i1 >= (GLint) size)
+ *i1 = size - 1;
+ }
+ break;
+ case GL_MIRROR_CLAMP_EXT:
+ u = FABSF(s);
+ if (u >= 1.0F)
+ u = (GLfloat) size;
+ else
+ u *= size;
+ u -= 0.5F;
+ *i0 = IFLOOR(u);
+ *i1 = *i0 + 1;
+ break;
+ case GL_MIRROR_CLAMP_TO_EDGE_EXT:
+ u = FABSF(s);
+ if (u >= 1.0F)
+ u = (GLfloat) size;
+ else
+ u *= size;
+ u -= 0.5F;
+ *i0 = IFLOOR(u);
+ *i1 = *i0 + 1;
+ if (*i0 < 0)
+ *i0 = 0;
+ if (*i1 >= (GLint) size)
+ *i1 = size - 1;
+ break;
+ case GL_MIRROR_CLAMP_TO_BORDER_EXT:
+ {
+ const GLfloat min = -1.0F / (2.0F * size);
+ const GLfloat max = 1.0F - min;
+ u = FABSF(s);
+ if (u <= min)
+ u = min * size;
+ else if (u >= max)
+ u = max * size;
+ else
+ u *= size;
+ u -= 0.5F;
+ *i0 = IFLOOR(u);
+ *i1 = *i0 + 1;
+ }
+ break;
+ case GL_CLAMP:
+ if (s <= 0.0F)
+ u = 0.0F;
+ else if (s >= 1.0F)
+ u = (GLfloat) size;
+ else
+ u = s * size;
+ u -= 0.5F;
+ *i0 = IFLOOR(u);
+ *i1 = *i0 + 1;
+ break;
+ default:
+ _mesa_problem(NULL, "Bad wrap mode");
+ u = 0.0F;
+ }
+ *weight = FRAC(u);
}
/**
* Used to compute texel location for nearest sampling.
*/
-#define COMPUTE_NEAREST_TEXEL_LOCATION(wrapMode, S, SIZE, I) \
-{ \
- switch (wrapMode) { \
- case GL_REPEAT: \
- /* s limited to [0,1) */ \
- /* i limited to [0,size-1] */ \
- I = IFLOOR(S * SIZE); \
- if (img->_IsPowerOfTwo) \
- I &= (SIZE - 1); \
- else \
- I = REMAINDER(I, SIZE); \
- break; \
- case GL_CLAMP_TO_EDGE: \
- { \
- /* s limited to [min,max] */ \
- /* i limited to [0, size-1] */ \
- const GLfloat min = 1.0F / (2.0F * SIZE); \
- const GLfloat max = 1.0F - min; \
- if (S < min) \
- I = 0; \
- else if (S > max) \
- I = SIZE - 1; \
- else \
- I = IFLOOR(S * SIZE); \
- } \
- break; \
- case GL_CLAMP_TO_BORDER: \
- { \
- /* s limited to [min,max] */ \
- /* i limited to [-1, size] */ \
- const GLfloat min = -1.0F / (2.0F * SIZE); \
- const GLfloat max = 1.0F - min; \
- if (S <= min) \
- I = -1; \
- else if (S >= max) \
- I = SIZE; \
- else \
- I = IFLOOR(S * SIZE); \
- } \
- break; \
- case GL_MIRRORED_REPEAT: \
- { \
- const GLfloat min = 1.0F / (2.0F * SIZE); \
- const GLfloat max = 1.0F - min; \
- const GLint flr = IFLOOR(S); \
- GLfloat u; \
- if (flr & 1) \
- u = 1.0F - (S - (GLfloat) flr); /* flr is odd */ \
- else \
- u = S - (GLfloat) flr; /* flr is even */ \
- if (u < min) \
- I = 0; \
- else if (u > max) \
- I = SIZE - 1; \
- else \
- I = IFLOOR(u * SIZE); \
- } \
- break; \
- case GL_MIRROR_CLAMP_EXT: \
- { \
- /* s limited to [0,1] */ \
- /* i limited to [0,size-1] */ \
- const GLfloat u = FABSF(S); \
- if (u <= 0.0F) \
- I = 0; \
- else if (u >= 1.0F) \
- I = SIZE - 1; \
- else \
- I = IFLOOR(u * SIZE); \
- } \
- break; \
- case GL_MIRROR_CLAMP_TO_EDGE_EXT: \
- { \
- /* s limited to [min,max] */ \
- /* i limited to [0, size-1] */ \
- const GLfloat min = 1.0F / (2.0F * SIZE); \
- const GLfloat max = 1.0F - min; \
- const GLfloat u = FABSF(S); \
- if (u < min) \
- I = 0; \
- else if (u > max) \
- I = SIZE - 1; \
- else \
- I = IFLOOR(u * SIZE); \
- } \
- break; \
- case GL_MIRROR_CLAMP_TO_BORDER_EXT: \
- { \
- /* s limited to [min,max] */ \
- /* i limited to [0, size-1] */ \
- const GLfloat min = -1.0F / (2.0F * SIZE); \
- const GLfloat max = 1.0F - min; \
- const GLfloat u = FABSF(S); \
- if (u < min) \
- I = -1; \
- else if (u > max) \
- I = SIZE; \
- else \
- I = IFLOOR(u * SIZE); \
- } \
- break; \
- case GL_CLAMP: \
- /* s limited to [0,1] */ \
- /* i limited to [0,size-1] */ \
- if (S <= 0.0F) \
- I = 0; \
- else if (S >= 1.0F) \
- I = SIZE - 1; \
- else \
- I = IFLOOR(S * SIZE); \
- break; \
- default: \
- _mesa_problem(ctx, "Bad wrap mode"); \
- return; \
- } \
+static INLINE GLint
+nearest_texel_location(GLenum wrapMode,
+ const struct gl_texture_image *img,
+ GLint size, GLfloat s)
+{
+ GLint i;
+
+ switch (wrapMode) {
+ case GL_REPEAT:
+ /* s limited to [0,1) */
+ /* i limited to [0,size-1] */
+ i = IFLOOR(s * size);
+ if (img->_IsPowerOfTwo)
+ i &= (size - 1);
+ else
+ i = REMAINDER(i, size);
+ return i;
+ case GL_CLAMP_TO_EDGE:
+ {
+ /* s limited to [min,max] */
+ /* i limited to [0, size-1] */
+ const GLfloat min = 1.0F / (2.0F * size);
+ const GLfloat max = 1.0F - min;
+ if (s < min)
+ i = 0;
+ else if (s > max)
+ i = size - 1;
+ else
+ i = IFLOOR(s * size);
+ }
+ return i;
+ case GL_CLAMP_TO_BORDER:
+ {
+ /* s limited to [min,max] */
+ /* i limited to [-1, size] */
+ const GLfloat min = -1.0F / (2.0F * size);
+ const GLfloat max = 1.0F - min;
+ if (s <= min)
+ i = -1;
+ else if (s >= max)
+ i = size;
+ else
+ i = IFLOOR(s * size);
+ }
+ return i;
+ case GL_MIRRORED_REPEAT:
+ {
+ const GLfloat min = 1.0F / (2.0F * size);
+ const GLfloat max = 1.0F - min;
+ const GLint flr = IFLOOR(s);
+ GLfloat u;
+ if (flr & 1)
+ u = 1.0F - (s - (GLfloat) flr);
+ else
+ u = s - (GLfloat) flr;
+ if (u < min)
+ i = 0;
+ else if (u > max)
+ i = size - 1;
+ else
+ i = IFLOOR(u * size);
+ }
+ return i;
+ case GL_MIRROR_CLAMP_EXT:
+ {
+ /* s limited to [0,1] */
+ /* i limited to [0,size-1] */
+ const GLfloat u = FABSF(s);
+ if (u <= 0.0F)
+ i = 0;
+ else if (u >= 1.0F)
+ i = size - 1;
+ else
+ i = IFLOOR(u * size);
+ }
+ return i;
+ case GL_MIRROR_CLAMP_TO_EDGE_EXT:
+ {
+ /* s limited to [min,max] */
+ /* i limited to [0, size-1] */
+ const GLfloat min = 1.0F / (2.0F * size);
+ const GLfloat max = 1.0F - min;
+ const GLfloat u = FABSF(s);
+ if (u < min)
+ i = 0;
+ else if (u > max)
+ i = size - 1;
+ else
+ i = IFLOOR(u * size);
+ }
+ return i;
+ case GL_MIRROR_CLAMP_TO_BORDER_EXT:
+ {
+ /* s limited to [min,max] */
+ /* i limited to [0, size-1] */
+ const GLfloat min = -1.0F / (2.0F * size);
+ const GLfloat max = 1.0F - min;
+ const GLfloat u = FABSF(s);
+ if (u < min)
+ i = -1;
+ else if (u > max)
+ i = size;
+ else
+ i = IFLOOR(u * size);
+ }
+ return i;
+ case GL_CLAMP:
+ /* s limited to [0,1] */
+ /* i limited to [0,size-1] */
+ if (s <= 0.0F)
+ i = 0;
+ else if (s >= 1.0F)
+ i = size - 1;
+ else
+ i = IFLOOR(s * size);
+ return i;
+ default:
+ _mesa_problem(NULL, "Bad wrap mode");
+ return 0;
+ }
}
/* Power of two image sizes only */
-#define COMPUTE_LINEAR_REPEAT_TEXEL_LOCATION(S, U, SIZE, I0, I1) \
-{ \
- U = S * SIZE - 0.5F; \
- I0 = IFLOOR(U) & (SIZE - 1); \
- I1 = (I0 + 1) & (SIZE - 1); \
+static INLINE void
+linear_repeat_texel_location(GLuint size, GLfloat s,
+ GLint *i0, GLint *i1, GLfloat *weight)
+{
+ GLfloat u = s * size - 0.5F;
+ *i0 = IFLOOR(u) & (size - 1);
+ *i1 = (*i0 + 1) & (size - 1);
+ *weight = FRAC(u);
}
@@ -516,17 +540,6 @@ nearest_mipmap_level(const struct gl_texture_object *tObj, GLfloat lambda)
/*
- * Note, the FRAC macro has to work perfectly. Otherwise you'll sometimes
- * see 1-pixel bands of improperly weighted linear-filtered textures.
- * The tests/texwrap.c demo is a good test.
- * Also note, FRAC(x) doesn't truly return the fractional part of x for x < 0.
- * Instead, if x < 0 then FRAC(x) = 1 - true_frac(x).
- */
-#define FRAC(f) ((f) - IFLOOR(f))
-
-
-
-/*
* Bitflags for texture border color sampling.
*/
#define I0BIT 1
@@ -538,7 +551,7 @@ nearest_mipmap_level(const struct gl_texture_object *tObj, GLfloat lambda)
-/*
+/**
* The lambda[] array values are always monotonic. Either the whole span
* will be minified, magnified, or split between the two. This function
* determines the subranges in [0, n-1] that are to be minified or magnified.
@@ -651,10 +664,10 @@ compute_min_mag_ranges(const struct gl_texture_object *tObj,
/* 1-D Texture Sampling Functions */
/**********************************************************************/
-/*
+/**
* Return the texture sample for coordinate (s) using GL_NEAREST filter.
*/
-static void
+static INLINE void
sample_1d_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
const struct gl_texture_image *img,
@@ -662,7 +675,7 @@ sample_1d_nearest(GLcontext *ctx,
{
const GLint width = img->Width2; /* without border, power of two */
GLint i;
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoord[0], width, i);
+ i = nearest_texel_location(tObj->WrapS, img, width, texcoord[0]);
/* skip over the border, if any */
i += img->Border;
if (i < 0 || i >= (GLint) img->Width) {
@@ -675,10 +688,10 @@ sample_1d_nearest(GLcontext *ctx,
}
-/*
+/**
* Return the texture sample for coordinate (s) using GL_LINEAR filter.
*/
-static void
+static INLINE void
sample_1d_linear(GLcontext *ctx,
const struct gl_texture_object *tObj,
const struct gl_texture_image *img,
@@ -686,12 +699,11 @@ sample_1d_linear(GLcontext *ctx,
{
const GLint width = img->Width2;
GLint i0, i1;
- GLfloat u;
GLbitfield useBorderColor = 0x0;
GLfloat a;
GLchan t0[4], t1[4]; /* texels */
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoord[0], u, width, i0, i1);
+ linear_texel_locations(tObj->WrapS, img, width, texcoord[0], &i0, &i1, &a);
if (img->Border) {
i0 += img->Border;
@@ -716,7 +728,6 @@ sample_1d_linear(GLcontext *ctx,
img->FetchTexelc(img, i1, 0, 0, t1);
}
- a = FRAC(u);
lerp_rgba(rgba, a, t0, t1);
}
@@ -776,7 +787,6 @@ sample_1d_nearest_mipmap_linear(GLcontext *ctx,
}
-
static void
sample_1d_linear_mipmap_linear(GLcontext *ctx,
const struct gl_texture_object *tObj,
@@ -802,7 +812,7 @@ sample_1d_linear_mipmap_linear(GLcontext *ctx,
}
-
+/** Sample 1D texture, nearest filtering for both min/magnification */
static void
sample_nearest_1d( GLcontext *ctx,
const struct gl_texture_object *tObj, GLuint n,
@@ -812,13 +822,13 @@ sample_nearest_1d( GLcontext *ctx,
GLuint i;
struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel];
(void) lambda;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
sample_1d_nearest(ctx, tObj, image, texcoords[i], rgba[i]);
}
}
-
+/** Sample 1D texture, linear filtering for both min/magnification */
static void
sample_linear_1d( GLcontext *ctx,
const struct gl_texture_object *tObj, GLuint n,
@@ -828,17 +838,13 @@ sample_linear_1d( GLcontext *ctx,
GLuint i;
struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel];
(void) lambda;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
sample_1d_linear(ctx, tObj, image, texcoords[i], rgba[i]);
}
}
-/*
- * Given an (s) texture coordinate and lambda (level of detail) value,
- * return a texture sample.
- *
- */
+/** Sample 1D texture, using lambda to choose between min/magnification */
static void
sample_lambda_1d( GLcontext *ctx,
const struct gl_texture_object *tObj, GLuint n,
@@ -915,7 +921,7 @@ sample_lambda_1d( GLcontext *ctx,
/**********************************************************************/
-/*
+/**
* Return the texture sample for coordinate (s,t) using GL_NEAREST filter.
*/
static INLINE void
@@ -930,8 +936,8 @@ sample_2d_nearest(GLcontext *ctx,
GLint i, j;
(void) ctx;
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoord[0], width, i);
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapT, texcoord[1], height, j);
+ i = nearest_texel_location(tObj->WrapS, img, width, texcoord[0]);
+ j = nearest_texel_location(tObj->WrapT, img, height, texcoord[1]);
/* skip over the border, if any */
i += img->Border;
@@ -947,7 +953,6 @@ sample_2d_nearest(GLcontext *ctx,
}
-
/**
* Return the texture sample for coordinate (s,t) using GL_LINEAR filter.
* New sampling code contributed by Lynn Quam <quam@ai.sri.com>.
@@ -963,12 +968,11 @@ sample_2d_linear(GLcontext *ctx,
const GLint height = img->Height2;
GLint i0, j0, i1, j1;
GLbitfield useBorderColor = 0x0;
- GLfloat u, v;
GLfloat a, b;
GLchan t00[4], t10[4], t01[4], t11[4]; /* sampled texel colors */
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoord[0], u, width, i0, i1);
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapT, texcoord[1], v, height, j0, j1);
+ linear_texel_locations(tObj->WrapS, img, width, texcoord[0], &i0, &i1, &a);
+ linear_texel_locations(tObj->WrapT, img, height, texcoord[1], &j0, &j1, &b);
if (img->Border) {
i0 += img->Border;
@@ -1009,13 +1013,11 @@ sample_2d_linear(GLcontext *ctx,
img->FetchTexelc(img, i1, j1, 0, t11);
}
- a = FRAC(u);
- b = FRAC(v);
lerp_rgba_2d(rgba, a, b, t00, t10, t01, t11);
}
-/*
+/**
* As above, but we know WRAP_S == REPEAT and WRAP_T == REPEAT.
* We don't have to worry about the texture border.
*/
@@ -1029,8 +1031,7 @@ sample_2d_linear_repeat(GLcontext *ctx,
const GLint width = img->Width2;
const GLint height = img->Height2;
GLint i0, j0, i1, j1;
- GLfloat u, v;
- GLfloat a, b;
+ GLfloat wi, wj;
GLchan t00[4], t10[4], t01[4], t11[4]; /* sampled texel colors */
(void) ctx;
@@ -1041,21 +1042,18 @@ sample_2d_linear_repeat(GLcontext *ctx,
ASSERT(img->TexFormat->BaseFormat != GL_COLOR_INDEX);
ASSERT(img->_IsPowerOfTwo);
- COMPUTE_LINEAR_REPEAT_TEXEL_LOCATION(texcoord[0], u, width, i0, i1);
- COMPUTE_LINEAR_REPEAT_TEXEL_LOCATION(texcoord[1], v, height, j0, j1);
+ linear_repeat_texel_location(width, texcoord[0], &i0, &i1, &wi);
+ linear_repeat_texel_location(height, texcoord[1], &j0, &j1, &wj);
img->FetchTexelc(img, i0, j0, 0, t00);
img->FetchTexelc(img, i1, j0, 0, t10);
img->FetchTexelc(img, i0, j1, 0, t01);
img->FetchTexelc(img, i1, j1, 0, t11);
- a = FRAC(u);
- b = FRAC(v);
- lerp_rgba_2d(rgba, a, b, t00, t10, t01, t11);
+ lerp_rgba_2d(rgba, wi, wj, t00, t10, t01, t11);
}
-
static void
sample_2d_nearest_mipmap_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
@@ -1070,7 +1068,6 @@ sample_2d_nearest_mipmap_nearest(GLcontext *ctx,
}
-
static void
sample_2d_linear_mipmap_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
@@ -1086,7 +1083,6 @@ sample_2d_linear_mipmap_nearest(GLcontext *ctx,
}
-
static void
sample_2d_nearest_mipmap_linear(GLcontext *ctx,
const struct gl_texture_object *tObj,
@@ -1112,8 +1108,6 @@ sample_2d_nearest_mipmap_linear(GLcontext *ctx,
}
-
-/* Trilinear filtering */
static void
sample_2d_linear_mipmap_linear( GLcontext *ctx,
const struct gl_texture_object *tObj,
@@ -1140,10 +1134,10 @@ sample_2d_linear_mipmap_linear( GLcontext *ctx,
static void
-sample_2d_linear_mipmap_linear_repeat( GLcontext *ctx,
- const struct gl_texture_object *tObj,
- GLuint n, const GLfloat texcoord[][4],
- const GLfloat lambda[], GLchan rgba[][4] )
+sample_2d_linear_mipmap_linear_repeat(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLuint n, const GLfloat texcoord[][4],
+ const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
ASSERT(lambda != NULL);
@@ -1158,35 +1152,38 @@ sample_2d_linear_mipmap_linear_repeat( GLcontext *ctx,
else {
GLchan t0[4], t1[4]; /* texels */
const GLfloat f = FRAC(lambda[i]);
- sample_2d_linear_repeat(ctx, tObj, tObj->Image[0][level ], texcoord[i], t0);
- sample_2d_linear_repeat(ctx, tObj, tObj->Image[0][level+1], texcoord[i], t1);
+ sample_2d_linear_repeat(ctx, tObj, tObj->Image[0][level ],
+ texcoord[i], t0);
+ sample_2d_linear_repeat(ctx, tObj, tObj->Image[0][level+1],
+ texcoord[i], t1);
lerp_rgba(rgba[i], f, t0, t1);
}
}
}
+/** Sample 2D texture, nearest filtering for both min/magnification */
static void
-sample_nearest_2d( GLcontext *ctx,
- const struct gl_texture_object *tObj, GLuint n,
- const GLfloat texcoords[][4],
- const GLfloat lambda[], GLchan rgba[][4] )
+sample_nearest_2d(GLcontext *ctx,
+ const struct gl_texture_object *tObj, GLuint n,
+ const GLfloat texcoords[][4],
+ const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel];
(void) lambda;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
sample_2d_nearest(ctx, tObj, image, texcoords[i], rgba[i]);
}
}
-
+/** Sample 2D texture, linear filtering for both min/magnification */
static void
-sample_linear_2d( GLcontext *ctx,
- const struct gl_texture_object *tObj, GLuint n,
- const GLfloat texcoords[][4],
- const GLfloat lambda[], GLchan rgba[][4] )
+sample_linear_2d(GLcontext *ctx,
+ const struct gl_texture_object *tObj, GLuint n,
+ const GLfloat texcoords[][4],
+ const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel];
@@ -1195,19 +1192,19 @@ sample_linear_2d( GLcontext *ctx,
tObj->WrapT == GL_REPEAT &&
image->_IsPowerOfTwo &&
image->Border == 0) {
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
sample_2d_linear_repeat(ctx, tObj, image, texcoords[i], rgba[i]);
}
}
else {
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
sample_2d_linear(ctx, tObj, image, texcoords[i], rgba[i]);
}
}
}
-/*
+/**
* Optimized 2-D texture sampling:
* S and T wrap mode == GL_REPEAT
* GL_NEAREST min/mag filter
@@ -1216,10 +1213,10 @@ sample_linear_2d( GLcontext *ctx,
* Format = GL_RGB
*/
static void
-opt_sample_rgb_2d( GLcontext *ctx,
- const struct gl_texture_object *tObj,
- GLuint n, const GLfloat texcoords[][4],
- const GLfloat lambda[], GLchan rgba[][4] )
+opt_sample_rgb_2d(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLuint n, const GLfloat texcoords[][4],
+ const GLfloat lambda[], GLchan rgba[][4])
{
const struct gl_texture_image *img = tObj->Image[0][tObj->BaseLevel];
const GLfloat width = (GLfloat) img->Width;
@@ -1248,7 +1245,7 @@ opt_sample_rgb_2d( GLcontext *ctx,
}
-/*
+/**
* Optimized 2-D texture sampling:
* S and T wrap mode == GL_REPEAT
* GL_NEAREST min/mag filter
@@ -1257,10 +1254,10 @@ opt_sample_rgb_2d( GLcontext *ctx,
* Format = GL_RGBA
*/
static void
-opt_sample_rgba_2d( GLcontext *ctx,
- const struct gl_texture_object *tObj,
- GLuint n, const GLfloat texcoords[][4],
- const GLfloat lambda[], GLchan rgba[][4] )
+opt_sample_rgba_2d(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLuint n, const GLfloat texcoords[][4],
+ const GLfloat lambda[], GLchan rgba[][4])
{
const struct gl_texture_image *img = tObj->Image[0][tObj->BaseLevel];
const GLfloat width = (GLfloat) img->Width;
@@ -1287,15 +1284,12 @@ opt_sample_rgba_2d( GLcontext *ctx,
}
-/*
- * Given an array of texture coordinate and lambda (level of detail)
- * values, return an array of texture sample.
- */
+/** Sample 2D texture, using lambda to choose between min/magnification */
static void
-sample_lambda_2d( GLcontext *ctx,
- const struct gl_texture_object *tObj,
- GLuint n, const GLfloat texcoords[][4],
- const GLfloat lambda[], GLchan rgba[][4] )
+sample_lambda_2d(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLuint n, const GLfloat texcoords[][4],
+ const GLfloat lambda[], GLchan rgba[][4])
{
const struct gl_texture_image *tImg = tObj->Image[0][tObj->BaseLevel];
GLuint minStart, minEnd; /* texels with minification */
@@ -1409,10 +1403,10 @@ sample_lambda_2d( GLcontext *ctx,
/* 3-D Texture Sampling Functions */
/**********************************************************************/
-/*
+/**
* Return the texture sample for coordinate (s,t,r) using GL_NEAREST filter.
*/
-static void
+static INLINE void
sample_3d_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
const struct gl_texture_image *img,
@@ -1425,9 +1419,9 @@ sample_3d_nearest(GLcontext *ctx,
GLint i, j, k;
(void) ctx;
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoord[0], width, i);
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapT, texcoord[1], height, j);
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapR, texcoord[2], depth, k);
+ i = nearest_texel_location(tObj->WrapS, img, width, texcoord[0]);
+ j = nearest_texel_location(tObj->WrapT, img, height, texcoord[1]);
+ k = nearest_texel_location(tObj->WrapR, img, depth, texcoord[2]);
if (i < 0 || i >= (GLint) img->Width ||
j < 0 || j >= (GLint) img->Height ||
@@ -1441,8 +1435,7 @@ sample_3d_nearest(GLcontext *ctx,
}
-
-/*
+/**
* Return the texture sample for coordinate (s,t,r) using GL_LINEAR filter.
*/
static void
@@ -1457,14 +1450,13 @@ sample_3d_linear(GLcontext *ctx,
const GLint depth = img->Depth2;
GLint i0, j0, k0, i1, j1, k1;
GLbitfield useBorderColor = 0x0;
- GLfloat u, v, w;
GLfloat a, b, c;
GLchan t000[4], t010[4], t001[4], t011[4];
GLchan t100[4], t110[4], t101[4], t111[4];
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoord[0], u, width, i0, i1);
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapT, texcoord[1], v, height, j0, j1);
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapR, texcoord[2], w, depth, k0, k1);
+ linear_texel_locations(tObj->WrapS, img, width, texcoord[0], &i0, &i1, &a);
+ linear_texel_locations(tObj->WrapT, img, height, texcoord[1], &j0, &j1, &b);
+ linear_texel_locations(tObj->WrapR, img, depth, texcoord[2], &k0, &k1, &c);
if (img->Border) {
i0 += img->Border;
@@ -1536,14 +1528,10 @@ sample_3d_linear(GLcontext *ctx,
}
/* trilinear interpolation of samples */
- a = FRAC(u);
- b = FRAC(v);
- c = FRAC(w);
lerp_rgba_3d(rgba, a, b, c, t000, t100, t010, t110, t001, t101, t011, t111);
}
-
static void
sample_3d_nearest_mipmap_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
@@ -1623,6 +1611,7 @@ sample_3d_linear_mipmap_linear(GLcontext *ctx,
}
+/** Sample 3D texture, nearest filtering for both min/magnification */
static void
sample_nearest_3d(GLcontext *ctx,
const struct gl_texture_object *tObj, GLuint n,
@@ -1632,37 +1621,34 @@ sample_nearest_3d(GLcontext *ctx,
GLuint i;
struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel];
(void) lambda;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
sample_3d_nearest(ctx, tObj, image, texcoords[i], rgba[i]);
}
}
-
+/** Sample 3D texture, linear filtering for both min/magnification */
static void
-sample_linear_3d( GLcontext *ctx,
- const struct gl_texture_object *tObj, GLuint n,
- const GLfloat texcoords[][4],
- const GLfloat lambda[], GLchan rgba[][4] )
+sample_linear_3d(GLcontext *ctx,
+ const struct gl_texture_object *tObj, GLuint n,
+ const GLfloat texcoords[][4],
+ const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel];
(void) lambda;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
sample_3d_linear(ctx, tObj, image, texcoords[i], rgba[i]);
}
}
-/*
- * Given an (s,t,r) texture coordinate and lambda (level of detail) value,
- * return a texture sample.
- */
+/** Sample 3D texture, using lambda to choose between min/magnification */
static void
-sample_lambda_3d( GLcontext *ctx,
- const struct gl_texture_object *tObj, GLuint n,
- const GLfloat texcoords[][4], const GLfloat lambda[],
- GLchan rgba[][4] )
+sample_lambda_3d(GLcontext *ctx,
+ const struct gl_texture_object *tObj, GLuint n,
+ const GLfloat texcoords[][4], const GLfloat lambda[],
+ GLchan rgba[][4])
{
GLuint minStart, minEnd; /* texels with minification */
GLuint magStart, magEnd; /* texels with magnification */
@@ -1951,11 +1937,12 @@ sample_cube_linear_mipmap_linear(GLcontext *ctx,
}
+/** Sample cube texture, using lambda to choose between min/magnification */
static void
-sample_lambda_cube( GLcontext *ctx,
- const struct gl_texture_object *tObj, GLuint n,
- const GLfloat texcoords[][4], const GLfloat lambda[],
- GLchan rgba[][4])
+sample_lambda_cube(GLcontext *ctx,
+ const struct gl_texture_object *tObj, GLuint n,
+ const GLfloat texcoords[][4], const GLfloat lambda[],
+ GLchan rgba[][4])
{
GLuint minStart, minEnd; /* texels with minification */
GLuint magStart, magEnd; /* texels with magnification */
@@ -2031,50 +2018,56 @@ sample_lambda_cube( GLcontext *ctx,
static INLINE GLint
clamp_rect_coord_nearest(GLenum wrapMode, GLfloat coord, GLint max)
{
- if (wrapMode == GL_CLAMP) {
+ switch (wrapMode) {
+ case GL_CLAMP:
return IFLOOR( CLAMP(coord, 0.0F, max - 1) );
- }
- else if (wrapMode == GL_CLAMP_TO_EDGE) {
+ case GL_CLAMP_TO_EDGE:
return IFLOOR( CLAMP(coord, 0.5F, max - 0.5F) );
- }
- else {
+ case GL_CLAMP_TO_BORDER:
return IFLOOR( CLAMP(coord, -0.5F, max + 0.5F) );
+ default:
+ _mesa_problem(NULL, "bad wrapMode in clamp_rect_coord_nearest");
+ return 0;
}
}
-/*
+/**
* As above, but GL_LINEAR filtering.
*/
static INLINE void
clamp_rect_coord_linear(GLenum wrapMode, GLfloat coord, GLint max,
- GLint *i0out, GLint *i1out)
+ GLint *i0out, GLint *i1out, GLfloat *weight)
{
GLfloat fcol;
GLint i0, i1;
- if (wrapMode == GL_CLAMP) {
+ switch (wrapMode) {
+ case GL_CLAMP:
/* Not exactly what the spec says, but it matches NVIDIA output */
fcol = CLAMP(coord - 0.5F, 0.0, max-1);
i0 = IFLOOR(fcol);
i1 = i0 + 1;
- }
- else if (wrapMode == GL_CLAMP_TO_EDGE) {
+ break;
+ case GL_CLAMP_TO_EDGE:
fcol = CLAMP(coord, 0.5F, max - 0.5F);
fcol -= 0.5F;
i0 = IFLOOR(fcol);
i1 = i0 + 1;
if (i1 > max - 1)
i1 = max - 1;
- }
- else {
- ASSERT(wrapMode == GL_CLAMP_TO_BORDER);
+ break;
+ case GL_CLAMP_TO_BORDER:
fcol = CLAMP(coord, -0.5F, max + 0.5F);
fcol -= 0.5F;
i0 = IFLOOR(fcol);
i1 = i0 + 1;
+ default:
+ _mesa_problem(NULL, "bad wrapMode in clamp_rect_coord_linear");
+ i0 = i1 = 0;
}
*i0out = i0;
*i1out = i1;
+ *weight = FRAC(fcol);
}
@@ -2085,10 +2078,8 @@ sample_nearest_rect(GLcontext *ctx,
GLchan rgba[][4])
{
const struct gl_texture_image *img = tObj->Image[0][0];
- const GLfloat width = (GLfloat) img->Width;
- const GLfloat height = (GLfloat) img->Height;
- const GLint width_minus_1 = img->Width - 1;
- const GLint height_minus_1 = img->Height - 1;
+ const GLint width = img->Width;
+ const GLint height = img->Height;
GLuint i;
(void) ctx;
@@ -2106,7 +2097,7 @@ sample_nearest_rect(GLcontext *ctx,
GLint row, col;
col = clamp_rect_coord_nearest(tObj->WrapS, texcoords[i][0], width);
row = clamp_rect_coord_nearest(tObj->WrapT, texcoords[i][1], height);
- if (col < 0 || col > width_minus_1 || row < 0 || row > height_minus_1)
+ if (col < 0 || col >= width || row < 0 || row >= height)
COPY_CHAN4(rgba[i], tObj->_BorderChan);
else
img->FetchTexelc(img, col, row, 0, rgba[i]);
@@ -2121,10 +2112,8 @@ sample_linear_rect(GLcontext *ctx,
const GLfloat lambda[], GLchan rgba[][4])
{
const struct gl_texture_image *img = tObj->Image[0][0];
- const GLfloat width = (GLfloat) img->Width;
- const GLfloat height = (GLfloat) img->Height;
- const GLint width_minus_1 = img->Width - 1;
- const GLint height_minus_1 = img->Height - 1;
+ const GLint width = img->Width;
+ const GLint height = img->Height;
GLuint i;
(void) ctx;
@@ -2138,64 +2127,22 @@ sample_linear_rect(GLcontext *ctx,
tObj->WrapT == GL_CLAMP_TO_BORDER);
ASSERT(img->TexFormat->BaseFormat != GL_COLOR_INDEX);
- /* XXX lots of opportunity for optimization in this loop */
for (i = 0; i < n; i++) {
- GLfloat frow, fcol;
GLint i0, j0, i1, j1;
GLchan t00[4], t01[4], t10[4], t11[4];
GLfloat a, b;
GLbitfield useBorderColor = 0x0;
- /* NOTE: we DO NOT use [0, 1] texture coordinates! */
- if (tObj->WrapS == GL_CLAMP) {
- /* Not exactly what the spec says, but it matches NVIDIA output */
- fcol = CLAMP(texcoords[i][0] - 0.5F, 0.0, width_minus_1);
- i0 = IFLOOR(fcol);
- i1 = i0 + 1;
- }
- else if (tObj->WrapS == GL_CLAMP_TO_EDGE) {
- fcol = CLAMP(texcoords[i][0], 0.5F, width - 0.5F);
- fcol -= 0.5F;
- i0 = IFLOOR(fcol);
- i1 = i0 + 1;
- if (i1 > width_minus_1)
- i1 = width_minus_1;
- }
- else {
- ASSERT(tObj->WrapS == GL_CLAMP_TO_BORDER);
- fcol = CLAMP(texcoords[i][0], -0.5F, width + 0.5F);
- fcol -= 0.5F;
- i0 = IFLOOR(fcol);
- i1 = i0 + 1;
- }
-
- if (tObj->WrapT == GL_CLAMP) {
- /* Not exactly what the spec says, but it matches NVIDIA output */
- frow = CLAMP(texcoords[i][1] - 0.5F, 0.0, width_minus_1);
- j0 = IFLOOR(frow);
- j1 = j0 + 1;
- }
- else if (tObj->WrapT == GL_CLAMP_TO_EDGE) {
- frow = CLAMP(texcoords[i][1], 0.5F, height - 0.5F);
- frow -= 0.5F;
- j0 = IFLOOR(frow);
- j1 = j0 + 1;
- if (j1 > height_minus_1)
- j1 = height_minus_1;
- }
- else {
- ASSERT(tObj->WrapT == GL_CLAMP_TO_BORDER);
- frow = CLAMP(texcoords[i][1], -0.5F, height + 0.5F);
- frow -= 0.5F;
- j0 = IFLOOR(frow);
- j1 = j0 + 1;
- }
+ clamp_rect_coord_linear(tObj->WrapS, texcoords[i][0], width,
+ &i0, &i1, &a);
+ clamp_rect_coord_linear(tObj->WrapT, texcoords[i][1], height,
+ &j0, &j1, &b);
/* compute integer rows/columns */
- if (i0 < 0 || i0 > width_minus_1) useBorderColor |= I0BIT;
- if (i1 < 0 || i1 > width_minus_1) useBorderColor |= I1BIT;
- if (j0 < 0 || j0 > height_minus_1) useBorderColor |= J0BIT;
- if (j1 < 0 || j1 > height_minus_1) useBorderColor |= J1BIT;
+ if (i0 < 0 || i0 >= width) useBorderColor |= I0BIT;
+ if (i1 < 0 || i1 >= width) useBorderColor |= I1BIT;
+ if (j0 < 0 || j0 >= height) useBorderColor |= J0BIT;
+ if (j1 < 0 || j1 >= height) useBorderColor |= J1BIT;
/* get four texel samples */
if (useBorderColor & (I0BIT | J0BIT))
@@ -2218,20 +2165,17 @@ sample_linear_rect(GLcontext *ctx,
else
img->FetchTexelc(img, i1, j1, 0, t11);
- /* compute interpolants */
- a = FRAC(fcol);
- b = FRAC(frow);
-
lerp_rgba_2d(rgba[i], a, b, t00, t10, t01, t11);
}
}
+/** Sample Rect texture, using lambda to choose between min/magnification */
static void
-sample_lambda_rect( GLcontext *ctx,
- const struct gl_texture_object *tObj, GLuint n,
- const GLfloat texcoords[][4], const GLfloat lambda[],
- GLchan rgba[][4])
+sample_lambda_rect(GLcontext *ctx,
+ const struct gl_texture_object *tObj, GLuint n,
+ const GLfloat texcoords[][4], const GLfloat lambda[],
+ GLchan rgba[][4])
{
GLuint minStart, minEnd, magStart, magEnd;
@@ -2243,22 +2187,22 @@ sample_lambda_rect( GLcontext *ctx,
if (minStart < minEnd) {
if (tObj->MinFilter == GL_NEAREST) {
- sample_nearest_rect( ctx, tObj, minEnd - minStart,
- texcoords + minStart, NULL, rgba + minStart);
+ sample_nearest_rect(ctx, tObj, minEnd - minStart,
+ texcoords + minStart, NULL, rgba + minStart);
}
else {
- sample_linear_rect( ctx, tObj, minEnd - minStart,
- texcoords + minStart, NULL, rgba + minStart);
+ sample_linear_rect(ctx, tObj, minEnd - minStart,
+ texcoords + minStart, NULL, rgba + minStart);
}
}
if (magStart < magEnd) {
if (tObj->MagFilter == GL_NEAREST) {
- sample_nearest_rect( ctx, tObj, magEnd - magStart,
- texcoords + magStart, NULL, rgba + magStart);
+ sample_nearest_rect(ctx, tObj, magEnd - magStart,
+ texcoords + magStart, NULL, rgba + magStart);
}
else {
- sample_linear_rect( ctx, tObj, magEnd - magStart,
- texcoords + magStart, NULL, rgba + magStart);
+ sample_linear_rect(ctx, tObj, magEnd - magStart,
+ texcoords + magStart, NULL, rgba + magStart);
}
}
}
@@ -2269,7 +2213,7 @@ sample_lambda_rect( GLcontext *ctx,
/* 2D Texture Array Sampling Functions */
/**********************************************************************/
-/*
+/**
* Return the texture sample for coordinate (s,t,r) using GL_NEAREST filter.
*/
static void
@@ -2286,8 +2230,8 @@ sample_2d_array_nearest(GLcontext *ctx,
GLint array;
(void) ctx;
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoord[0], width, i);
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapT, texcoord[1], height, j);
+ i = nearest_texel_location(tObj->WrapS, img, width, texcoord[0]);
+ j = nearest_texel_location(tObj->WrapT, img, height, texcoord[1]);
array = clamp_rect_coord_nearest(tObj->WrapR, texcoord[2], depth);
if (i < 0 || i >= (GLint) img->Width ||
@@ -2302,8 +2246,7 @@ sample_2d_array_nearest(GLcontext *ctx,
}
-
-/*
+/**
* Return the texture sample for coordinate (s,t,r) using GL_LINEAR filter.
*/
static void
@@ -2319,12 +2262,11 @@ sample_2d_array_linear(GLcontext *ctx,
GLint i0, j0, i1, j1;
GLint array;
GLbitfield useBorderColor = 0x0;
- GLfloat u, v;
GLfloat a, b;
GLchan t00[4], t01[4], t10[4], t11[4];
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoord[0], u, width, i0, i1);
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapT, texcoord[1], v, height, j0, j1);
+ linear_texel_locations(tObj->WrapS, img, width, texcoord[0], &i0, &i1, &a);
+ linear_texel_locations(tObj->WrapT, img, height, texcoord[1], &j0, &j1, &b);
array = clamp_rect_coord_nearest(tObj->WrapR, texcoord[2], depth);
if (array < 0 || array >= depth) {
@@ -2372,19 +2314,16 @@ sample_2d_array_linear(GLcontext *ctx,
}
/* trilinear interpolation of samples */
- a = FRAC(u);
- b = FRAC(v);
lerp_rgba_2d(rgba, a, b, t00, t10, t01, t11);
}
}
-
static void
sample_2d_array_nearest_mipmap_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
GLuint n, const GLfloat texcoord[][4],
- const GLfloat lambda[], GLchan rgba[][4] )
+ const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
for (i = 0; i < n; i++) {
@@ -2428,8 +2367,10 @@ sample_2d_array_nearest_mipmap_linear(GLcontext *ctx,
else {
GLchan t0[4], t1[4]; /* texels */
const GLfloat f = FRAC(lambda[i]);
- sample_2d_array_nearest(ctx, tObj, tObj->Image[0][level ], texcoord[i], t0);
- sample_2d_array_nearest(ctx, tObj, tObj->Image[0][level+1], texcoord[i], t1);
+ sample_2d_array_nearest(ctx, tObj, tObj->Image[0][level ],
+ texcoord[i], t0);
+ sample_2d_array_nearest(ctx, tObj, tObj->Image[0][level+1],
+ texcoord[i], t1);
lerp_rgba(rgba[i], f, t0, t1);
}
}
@@ -2438,9 +2379,9 @@ sample_2d_array_nearest_mipmap_linear(GLcontext *ctx,
static void
sample_2d_array_linear_mipmap_linear(GLcontext *ctx,
- const struct gl_texture_object *tObj,
- GLuint n, const GLfloat texcoord[][4],
- const GLfloat lambda[], GLchan rgba[][4])
+ const struct gl_texture_object *tObj,
+ GLuint n, const GLfloat texcoord[][4],
+ const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
ASSERT(lambda != NULL);
@@ -2453,30 +2394,34 @@ sample_2d_array_linear_mipmap_linear(GLcontext *ctx,
else {
GLchan t0[4], t1[4]; /* texels */
const GLfloat f = FRAC(lambda[i]);
- sample_2d_array_linear(ctx, tObj, tObj->Image[0][level ], texcoord[i], t0);
- sample_2d_array_linear(ctx, tObj, tObj->Image[0][level+1], texcoord[i], t1);
+ sample_2d_array_linear(ctx, tObj, tObj->Image[0][level ],
+ texcoord[i], t0);
+ sample_2d_array_linear(ctx, tObj, tObj->Image[0][level+1],
+ texcoord[i], t1);
lerp_rgba(rgba[i], f, t0, t1);
}
}
}
+/** Sample 2D Array texture, nearest filtering for both min/magnification */
static void
sample_nearest_2d_array(GLcontext *ctx,
- const struct gl_texture_object *tObj, GLuint n,
- const GLfloat texcoords[][4], const GLfloat lambda[],
- GLchan rgba[][4])
+ const struct gl_texture_object *tObj, GLuint n,
+ const GLfloat texcoords[][4], const GLfloat lambda[],
+ GLchan rgba[][4])
{
GLuint i;
struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel];
(void) lambda;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
sample_2d_array_nearest(ctx, tObj, image, texcoords[i], rgba[i]);
}
}
+/** Sample 2D Array texture, linear filtering for both min/magnification */
static void
sample_linear_2d_array(GLcontext *ctx,
const struct gl_texture_object *tObj, GLuint n,
@@ -2486,16 +2431,13 @@ sample_linear_2d_array(GLcontext *ctx,
GLuint i;
struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel];
(void) lambda;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
sample_2d_array_linear(ctx, tObj, image, texcoords[i], rgba[i]);
}
}
-/*
- * Given an (s,t,r) texture coordinate and lambda (level of detail) value,
- * return a texture sample.
- */
+/** Sample 2D Array texture, using lambda to choose between min/magnification */
static void
sample_lambda_2d_array(GLcontext *ctx,
const struct gl_texture_object *tObj, GLuint n,
@@ -2525,8 +2467,10 @@ sample_lambda_2d_array(GLcontext *ctx,
texcoords[i], rgba[i]);
break;
case GL_NEAREST_MIPMAP_NEAREST:
- sample_2d_array_nearest_mipmap_nearest(ctx, tObj, m, texcoords + minStart,
- lambda + minStart, rgba + minStart);
+ sample_2d_array_nearest_mipmap_nearest(ctx, tObj, m,
+ texcoords + minStart,
+ lambda + minStart,
+ rgba + minStart);
break;
case GL_LINEAR_MIPMAP_NEAREST:
sample_2d_array_linear_mipmap_nearest(ctx, tObj, m,
@@ -2535,8 +2479,10 @@ sample_lambda_2d_array(GLcontext *ctx,
rgba + minStart);
break;
case GL_NEAREST_MIPMAP_LINEAR:
- sample_2d_array_nearest_mipmap_linear(ctx, tObj, m, texcoords + minStart,
- lambda + minStart, rgba + minStart);
+ sample_2d_array_nearest_mipmap_linear(ctx, tObj, m,
+ texcoords + minStart,
+ lambda + minStart,
+ rgba + minStart);
break;
case GL_LINEAR_MIPMAP_LINEAR:
sample_2d_array_linear_mipmap_linear(ctx, tObj, m,
@@ -2577,7 +2523,7 @@ sample_lambda_2d_array(GLcontext *ctx,
/* 1D Texture Array Sampling Functions */
/**********************************************************************/
-/*
+/**
* Return the texture sample for coordinate (s,t,r) using GL_NEAREST filter.
*/
static void
@@ -2593,7 +2539,7 @@ sample_1d_array_nearest(GLcontext *ctx,
GLint array;
(void) ctx;
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoord[0], width, i);
+ i = nearest_texel_location(tObj->WrapS, img, width, texcoord[0]);
array = clamp_rect_coord_nearest(tObj->WrapT, texcoord[1], height);
if (i < 0 || i >= (GLint) img->Width ||
@@ -2607,8 +2553,7 @@ sample_1d_array_nearest(GLcontext *ctx,
}
-
-/*
+/**
* Return the texture sample for coordinate (s,t,r) using GL_LINEAR filter.
*/
static void
@@ -2623,11 +2568,10 @@ sample_1d_array_linear(GLcontext *ctx,
GLint i0, i1;
GLint array;
GLbitfield useBorderColor = 0x0;
- GLfloat u;
GLfloat a;
GLchan t0[4], t1[4];
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoord[0], u, width, i0, i1);
+ linear_texel_locations(tObj->WrapS, img, width, texcoord[0], &i0, &i1, &a);
array = clamp_rect_coord_nearest(tObj->WrapT, texcoord[1], height);
if (img->Border) {
@@ -2657,17 +2601,15 @@ sample_1d_array_linear(GLcontext *ctx,
}
/* bilinear interpolation of samples */
- a = FRAC(u);
lerp_rgba(rgba, a, t0, t1);
}
-
static void
sample_1d_array_nearest_mipmap_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
GLuint n, const GLfloat texcoord[][4],
- const GLfloat lambda[], GLchan rgba[][4] )
+ const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
for (i = 0; i < n; i++) {
@@ -2721,9 +2663,9 @@ sample_1d_array_nearest_mipmap_linear(GLcontext *ctx,
static void
sample_1d_array_linear_mipmap_linear(GLcontext *ctx,
- const struct gl_texture_object *tObj,
- GLuint n, const GLfloat texcoord[][4],
- const GLfloat lambda[], GLchan rgba[][4])
+ const struct gl_texture_object *tObj,
+ GLuint n, const GLfloat texcoord[][4],
+ const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
ASSERT(lambda != NULL);
@@ -2744,22 +2686,23 @@ sample_1d_array_linear_mipmap_linear(GLcontext *ctx,
}
+/** Sample 1D Array texture, nearest filtering for both min/magnification */
static void
sample_nearest_1d_array(GLcontext *ctx,
- const struct gl_texture_object *tObj, GLuint n,
- const GLfloat texcoords[][4], const GLfloat lambda[],
- GLchan rgba[][4])
+ const struct gl_texture_object *tObj, GLuint n,
+ const GLfloat texcoords[][4], const GLfloat lambda[],
+ GLchan rgba[][4])
{
GLuint i;
struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel];
(void) lambda;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
sample_1d_array_nearest(ctx, tObj, image, texcoords[i], rgba[i]);
}
}
-
+/** Sample 1D Array texture, linear filtering for both min/magnification */
static void
sample_linear_1d_array(GLcontext *ctx,
const struct gl_texture_object *tObj, GLuint n,
@@ -2769,16 +2712,13 @@ sample_linear_1d_array(GLcontext *ctx,
GLuint i;
struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel];
(void) lambda;
- for (i=0;i<n;i++) {
+ for (i = 0; i < n; i++) {
sample_1d_array_linear(ctx, tObj, image, texcoords[i], rgba[i]);
}
}
-/*
- * Given an (s,t,r) texture coordinate and lambda (level of detail) value,
- * return a texture sample.
- */
+/** Sample 1D Array texture, using lambda to choose between min/magnification */
static void
sample_lambda_1d_array(GLcontext *ctx,
const struct gl_texture_object *tObj, GLuint n,
@@ -2854,9 +2794,7 @@ sample_lambda_1d_array(GLcontext *ctx,
}
-
-
-/*
+/**
* Sample a shadow/depth texture.
*/
static void
@@ -2906,31 +2844,32 @@ sample_depth_texture( GLcontext *ctx,
break;
case GL_TEXTURE_1D:
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoords[i][0],
- width, col);
+ col = nearest_texel_location(tObj->WrapS, img, width,
+ texcoords[i][0]);
row = 0;
slice = 0;
break;
case GL_TEXTURE_2D:
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoords[i][0],
- width, col);
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapT, texcoords[i][1],
- height, row);
+ col = nearest_texel_location(tObj->WrapS, img, width,
+ texcoords[i][0]);
+ row = nearest_texel_location(tObj->WrapT, img, height,
+ texcoords[i][1]);
slice = 0;
break;
case GL_TEXTURE_1D_ARRAY_EXT:
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoords[i][0],
- width, col);
+ col = nearest_texel_location(tObj->WrapS, img, width,
+ texcoords[i][0]);
row = clamp_rect_coord_nearest(tObj->WrapT, texcoords[i][1], height);
slice = 0;
+ break;
case GL_TEXTURE_2D_ARRAY_EXT:
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoords[i][0],
- width, col);
- COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapT, texcoords[i][1],
- height, row);
+ col = nearest_texel_location(tObj->WrapS, img, width,
+ texcoords[i][0]);
+ row = nearest_texel_location(tObj->WrapT, img, height,
+ texcoords[i][1]);
slice = clamp_rect_coord_nearest(tObj->WrapR, texcoords[i][2], depth);
break;
}
@@ -3007,39 +2946,40 @@ sample_depth_texture( GLcontext *ctx,
GLfloat depth00, depth01, depth10, depth11;
GLint i0, i1, j0, j1;
GLint slice;
- GLfloat u, v;
+ GLfloat a, b;
GLuint useBorderTexel;
switch (tObj->Target) {
case GL_TEXTURE_RECTANGLE_ARB:
clamp_rect_coord_linear(tObj->WrapS, texcoords[i][0],
- width, &i0, &i1);
+ width, &i0, &i1, &a);
clamp_rect_coord_linear(tObj->WrapT, texcoords[i][1],
- height, &j0, &j1);
+ height, &j0, &j1, &b);
slice = 0;
break;
case GL_TEXTURE_1D:
case GL_TEXTURE_2D:
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoords[i][0],
- u, width, i0, i1);
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapT, texcoords[i][1],
- v, height,j0, j1);
+ linear_texel_locations(tObj->WrapS, img, width,
+ texcoords[i][0], &i0, &i1, &a);
+ linear_texel_locations(tObj->WrapT, img, height,
+ texcoords[i][1], &j0, &j1, &b);
slice = 0;
break;
case GL_TEXTURE_1D_ARRAY_EXT:
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoords[i][0],
- u, width, i0, i1);
+ linear_texel_locations(tObj->WrapS, img, width,
+ texcoords[i][0], &i0, &i1, &a);
j0 = clamp_rect_coord_nearest(tObj->WrapT, texcoords[i][1], height);
j1 = j0;
slice = 0;
+ break;
case GL_TEXTURE_2D_ARRAY_EXT:
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapS, texcoords[i][0],
- u, width, i0, i1);
- COMPUTE_LINEAR_TEXEL_LOCATIONS(tObj->WrapT, texcoords[i][1],
- v, height,j0, j1);
+ linear_texel_locations(tObj->WrapS, img, width,
+ texcoords[i][0], &i0, &i1, &a);
+ linear_texel_locations(tObj->WrapT, img, height,
+ texcoords[i][1], &j0, &j1, &b);
slice = clamp_rect_coord_nearest(tObj->WrapR, texcoords[i][2], depth);
break;
}
@@ -3103,8 +3043,6 @@ sample_depth_texture( GLcontext *ctx,
if (0) {
/* compute a single weighted depth sample and do one comparison */
- const GLfloat a = FRAC(u + 1.0F);
- const GLfloat b = FRAC(v + 1.0F);
const GLfloat depthSample
= lerp_2d(a, b, depth00, depth10, depth01, depth11);
if ((depthSample <= texcoords[i][compare_coord] && function == GL_LEQUAL) ||
@@ -3175,8 +3113,6 @@ sample_depth_texture( GLcontext *ctx,
case GL_NONE:
/* ordinary bilinear filtering */
{
- const GLfloat a = FRAC(u + 1.0F);
- const GLfloat b = FRAC(v + 1.0F);
const GLfloat depthSample
= lerp_2d(a, b, depth00, depth10, depth01, depth11);
CLAMPED_FLOAT_TO_CHAN(result, depthSample);
@@ -3270,10 +3206,10 @@ sample_depth_texture2(const GLcontext *ctx,
GLint col, row, ii, jj, imin, imax, jmin, jmax, samples, count;
GLfloat w;
GLchan lum;
- COMPUTE_NEAREST_TEXEL_LOCATION(texObj->WrapS, texcoords[i][0],
- width, col);
- COMPUTE_NEAREST_TEXEL_LOCATION(texObj->WrapT, texcoords[i][1],
- height, row);
+ col = nearest_texel_location(texObj->WrapS, img, width,
+ texcoords[i][0]);
+ row = nearest_texel_location(texObj->WrapT, img, height,
+ texcoords[i][1]);
imin = col - K;
imax = col + K;