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gtk2/gsk/ngl/gskngluniformstateprivate.h
Christian Hergert f8a6a09896 ngl: move uniform key mapping into uniform state 
Previously, we translated the uniform key (an enum) into a location within
the shader program in GskNglProgram. A number of performance improvements
were focused around having low nubers for the uniform locations. Generally
this is the case, but some drivers such as old Intel drivers on Windows
may use rather large numbers for those.

To combat this, we can push the translation of uniform keys into locations
at the GskNglUniformState level so that we work with unranslated keys
through the process until applying them.

Fixes #3780
2021-03-23 13:44:26 -07:00

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/* gskngluniformstateprivate.h
*
* Copyright 2020 Christian Hergert <chergert@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifndef GSK_NGL_UNIFORM_STATE_PRIVATE_H
#define GSK_NGL_UNIFORM_STATE_PRIVATE_H
#include "gskngltypesprivate.h"
G_BEGIN_DECLS
typedef struct { float v0; } Uniform1f;
typedef struct { float v0; float v1; } Uniform2f;
typedef struct { float v0; float v1; float v2; } Uniform3f;
typedef struct { float v0; float v1; float v2; float v3; } Uniform4f;
typedef struct { int v0; } Uniform1i;
typedef struct { int v0; int v1; } Uniform2i;
typedef struct { int v0; int v1; int v2; } Uniform3i;
typedef struct { int v0; int v1; int v2; int v3; } Uniform4i;
typedef struct { guint v0; } Uniform1ui;
#define GSK_NGL_UNIFORM_ARRAY_BITS 5
#define GSK_NGL_UNIFORM_FORMAT_BITS 5
#define GSK_NGL_UNIFORM_OFFSET_BITS 21
typedef struct _GskNglUniformInfo
{
guint initial : 1;
guint format : GSK_NGL_UNIFORM_FORMAT_BITS;
guint array_count : GSK_NGL_UNIFORM_ARRAY_BITS;
guint offset : GSK_NGL_UNIFORM_OFFSET_BITS;
} GskNglUniformInfo;
G_STATIC_ASSERT (sizeof (GskNglUniformInfo) == 4);
typedef struct _GskNglUniformMapping
{
const char *name;
GskNglUniformInfo info;
guint stamp;
int location;
} GskNglUniformMapping;
typedef struct _GskNglUniformProgram
{
guint program_id;
guint n_uniforms : 12;
guint has_attachments : 1;
guint n_mappings;
GskNglUniformMapping mappings[32];
} GskNglUniformProgram;
typedef struct _GskNglUniformState
{
GHashTable *programs;
guint8 *values_buf;
guint values_pos;
guint values_len;
GskNglUniformInfo apply_hash[512];
} GskNglUniformState;
typedef enum _GskNglUniformKind
{
GSK_NGL_UNIFORM_FORMAT_1F = 1,
GSK_NGL_UNIFORM_FORMAT_2F,
GSK_NGL_UNIFORM_FORMAT_3F,
GSK_NGL_UNIFORM_FORMAT_4F,
GSK_NGL_UNIFORM_FORMAT_1FV,
GSK_NGL_UNIFORM_FORMAT_2FV,
GSK_NGL_UNIFORM_FORMAT_3FV,
GSK_NGL_UNIFORM_FORMAT_4FV,
GSK_NGL_UNIFORM_FORMAT_1I,
GSK_NGL_UNIFORM_FORMAT_2I,
GSK_NGL_UNIFORM_FORMAT_3I,
GSK_NGL_UNIFORM_FORMAT_4I,
GSK_NGL_UNIFORM_FORMAT_1UI,
GSK_NGL_UNIFORM_FORMAT_TEXTURE,
GSK_NGL_UNIFORM_FORMAT_MATRIX,
GSK_NGL_UNIFORM_FORMAT_ROUNDED_RECT,
GSK_NGL_UNIFORM_FORMAT_COLOR,
GSK_NGL_UNIFORM_FORMAT_LAST
} GskNglUniformFormat;
G_STATIC_ASSERT (GSK_NGL_UNIFORM_FORMAT_LAST < (1 << GSK_NGL_UNIFORM_FORMAT_BITS));
GskNglUniformState *gsk_ngl_uniform_state_new (void);
GskNglUniformState *gsk_ngl_uniform_state_ref (GskNglUniformState *state);
void gsk_ngl_uniform_state_unref (GskNglUniformState *state);
GskNglUniformProgram *gsk_ngl_uniform_state_get_program (GskNglUniformState *state,
guint program,
const GskNglUniformMapping *mappings,
guint n_mappings);
void gsk_ngl_uniform_state_end_frame (GskNglUniformState *state);
gsize gsk_ngl_uniform_format_size (GskNglUniformFormat format);
gpointer gsk_ngl_uniform_state_init_value (GskNglUniformState *state,
GskNglUniformProgram *program,
GskNglUniformFormat format,
guint array_count,
guint key,
GskNglUniformMapping **out_mapping);
#define GSK_NGL_UNIFORM_VALUE(base, offset) ((gpointer)((base) + ((offset) * 4)))
#define gsk_ngl_uniform_state_get_uniform_data(state,offset) GSK_NGL_UNIFORM_VALUE((state)->values_buf, offset)
static inline gpointer
gsk_ngl_uniform_state_get_value (GskNglUniformState *state,
GskNglUniformProgram *program,
GskNglUniformFormat format,
guint array_count,
guint key,
guint stamp,
GskNglUniformMapping **out_mapping)
{
GskNglUniformMapping *mapping;
g_assert (key < G_N_ELEMENTS (program->mappings));
g_assert (key < program->n_mappings);
mapping = &program->mappings[key];
/* Short-circuit if the program optimized the uniform out */
if (mapping->location == -1)
return NULL;
/* If the stamp is the same, then we can ignore the request
* and short-circuit as early as possible. This requires the
* caller to increment their private stamp when they change
* internal state.
*
* This is generally used for the shared uniforms like projection,
* modelview, clip, etc to avoid so many comparisons which cost
* considerable CPU.
*/
if (stamp != 0 && stamp == mapping->stamp)
return NULL;
if G_LIKELY (format == mapping->info.format && array_count <= mapping->info.array_count)
{
*out_mapping = mapping;
return GSK_NGL_UNIFORM_VALUE (state->values_buf, mapping->info.offset);
}
return gsk_ngl_uniform_state_init_value (state, program, format, array_count, key, out_mapping);
}
static inline guint
gsk_ngl_uniform_state_align (guint current_pos,
guint size)
{
guint align = size > 8 ? 16 : (size > 4 ? 8 : 4);
guint masked = current_pos & (align - 1);
g_assert (size > 0);
g_assert (align == 4 || align == 8 || align == 16);
g_assert (masked < align);
return align - masked;
}
static inline gpointer
gsk_ngl_uniform_state_realloc (GskNglUniformState *state,
guint size,
guint *offset)
{
guint padding = gsk_ngl_uniform_state_align (state->values_pos, size);
if G_UNLIKELY (state->values_len - padding - size < state->values_pos)
{
state->values_len *= 2;
state->values_buf = g_realloc (state->values_buf, state->values_len);
}
/* offsets are in slots of 4 to use fewer bits */
g_assert ((state->values_pos + padding) % 4 == 0);
*offset = (state->values_pos + padding) / 4;
state->values_pos += padding + size;
return GSK_NGL_UNIFORM_VALUE (state->values_buf, *offset);
}
#define GSK_NGL_UNIFORM_STATE_REPLACE(info, u, type, count) \
G_STMT_START { \
if ((info)->info.initial && count == (info)->info.array_count) \
{ \
u = GSK_NGL_UNIFORM_VALUE (state->values_buf, (info)->info.offset); \
} \
else \
{ \
guint offset; \
u = gsk_ngl_uniform_state_realloc (state, sizeof(type) * MAX (1, count), &offset); \
g_assert (offset < (1 << GSK_NGL_UNIFORM_OFFSET_BITS)); \
(info)->info.offset = offset; \
/* We might have increased array length */ \
(info)->info.array_count = count; \
} \
} G_STMT_END
static inline void
gsk_ngl_uniform_info_changed (GskNglUniformMapping *info,
guint stamp)
{
info->stamp = stamp;
info->info.initial = FALSE;
}
static inline void
gsk_ngl_uniform_state_set1f (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
float value0)
{
Uniform1f *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != 0);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_1F, 1, key, stamp, &info)))
{
if (info->info.initial || u->v0 != value0)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform1f , 1);
u->v0 = value0;
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set2f (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
float value0,
float value1)
{
Uniform2f *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_2F, 1, key, stamp, &info)))
{
if (info->info.initial || u->v0 != value0 || u->v1 != value1)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform2f, 1);
u->v0 = value0;
u->v1 = value1;
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set3f (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
float value0,
float value1,
float value2)
{
Uniform3f *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_3F, 1, key, stamp, &info)))
{
if (info->info.initial || u->v0 != value0 || u->v1 != value1 || u->v2 != value2)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform3f, 1);
u->v0 = value0;
u->v1 = value1;
u->v2 = value2;
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set4f (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
float value0,
float value1,
float value2,
float value3)
{
Uniform4f *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_4F, 1, key, stamp, &info)))
{
if (info->info.initial || u->v0 != value0 || u->v1 != value1 || u->v2 != value2 || u->v3 != value3)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform4f, 1);
u->v0 = value0;
u->v1 = value1;
u->v2 = value2;
u->v3 = value3;
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set1ui (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
guint value0)
{
Uniform1ui *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_1UI, 1, key, stamp, &info)))
{
if (info->info.initial || u->v0 != value0)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform1ui, 1);
u->v0 = value0;
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set1i (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
int value0)
{
Uniform1i *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_1I, 1, key, stamp, &info)))
{
if (info->info.initial || u->v0 != value0)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform1i, 1);
u->v0 = value0;
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set2i (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
int value0,
int value1)
{
Uniform2i *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_2I, 1, key, stamp, &info)))
{
if (info->info.initial || u->v0 != value0 || u->v1 != value1)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform2i, 1);
u->v0 = value0;
u->v1 = value1;
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set3i (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
int value0,
int value1,
int value2)
{
Uniform3i *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_3I, 1, key, stamp, &info)))
{
if (info->info.initial || u->v0 != value0 || u->v1 != value1 || u->v2 != value2)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform3i, 1);
u->v0 = value0;
u->v1 = value1;
u->v2 = value2;
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set4i (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
int value0,
int value1,
int value2,
int value3)
{
Uniform4i *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_4I, 1, key, stamp, &info)))
{
if (info->info.initial || u->v0 != value0 || u->v1 != value1 || u->v2 != value2 || u->v3 != value3)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform4i, 1);
u->v0 = value0;
u->v1 = value1;
u->v2 = value2;
u->v3 = value3;
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set_rounded_rect (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
const GskRoundedRect *rounded_rect)
{
GskRoundedRect *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
g_assert (rounded_rect != NULL);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_ROUNDED_RECT, 1, key, stamp, &info)))
{
if (info->info.initial || memcmp (u, rounded_rect, sizeof *u) != 0)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, GskRoundedRect, 1);
memcpy (u, rounded_rect, sizeof *rounded_rect);
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set_matrix (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
const graphene_matrix_t *matrix)
{
graphene_matrix_t *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
g_assert (matrix != NULL);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_MATRIX, 1, key, stamp, &info)))
{
if (info->info.initial || memcmp (u, matrix, sizeof *u) != 0)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, graphene_matrix_t, 1);
memcpy (u, matrix, sizeof *matrix);
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
/**
* gsk_ngl_uniform_state_set_texture:
* @state: a #GskNglUniformState
* @program: the program id
* @location: the location of the texture
* @texture_slot: a texturing slot such as GL_TEXTURE0
*
* Sets the uniform expecting a texture to @texture_slot. This API
* expects a texture slot such as GL_TEXTURE0 to reduce chances of
* miss-use by the caller.
*
* The value stored to the uniform is in the form of 0 for GL_TEXTURE0,
* 1 for GL_TEXTURE1, and so on.
*/
static inline void
gsk_ngl_uniform_state_set_texture (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
guint texture_slot)
{
GskNglUniformMapping *info;
guint *u;
g_assert (texture_slot >= GL_TEXTURE0);
g_assert (texture_slot < GL_TEXTURE16);
texture_slot -= GL_TEXTURE0;
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_TEXTURE, 1, key, stamp, &info)))
{
if (info->info.initial || *u != texture_slot)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, guint, 1);
*u = texture_slot;
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
/**
* gsk_ngl_uniform_state_set_color:
* @state: a #GskNglUniformState
* @program: a program id > 0
* @location: the uniform location
* @color: a color to set or %NULL for transparent
*
* Sets a uniform to the color described by @color. This is a convenience
* function to allow callers to avoid having to translate colors to floats
* in other portions of the renderer.
*/
static inline void
gsk_ngl_uniform_state_set_color (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
const GdkRGBA *color)
{
static const GdkRGBA transparent = {0};
GskNglUniformMapping *info;
GdkRGBA *u;
g_assert (state != NULL);
g_assert (program != NULL);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_COLOR, 1, key, stamp, &info)))
{
if (color == NULL)
color = &transparent;
if (info->info.initial || memcmp (color, u, sizeof *u) != 0)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, GdkRGBA, 1);
memcpy (u, color, sizeof *color);
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set1fv (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
guint count,
const float *value)
{
Uniform1f *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
g_assert (count > 0);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_1FV, count, key, stamp, &info)))
{
if (info->info.initial || count != info->info.array_count || memcmp (u, value, sizeof *u * count) != 0)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform1f, count);
memcpy (u, value, sizeof (Uniform1f) * count);
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set2fv (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
guint count,
const float *value)
{
Uniform2f *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
g_assert (count > 0);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_2FV, count, key, stamp, &info)))
{
if (info->info.initial || count != info->info.array_count || memcmp (u, value, sizeof *u * count) != 0)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform2f, count);
memcpy (u, value, sizeof (Uniform2f) * count);
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set3fv (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
guint count,
const float *value)
{
Uniform3f *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
g_assert (count > 0);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_3FV, count, key, stamp, &info)))
{
if (info->info.initial || count != info->info.array_count || memcmp (u, value, sizeof *u * count) != 0)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform3f, count);
memcpy (u, value, sizeof (Uniform3f) * count);
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline void
gsk_ngl_uniform_state_set4fv (GskNglUniformState *state,
GskNglUniformProgram *program,
guint key,
guint stamp,
guint count,
const float *value)
{
Uniform4f *u;
GskNglUniformMapping *info;
g_assert (state != NULL);
g_assert (program != NULL);
g_assert (count > 0);
if ((u = gsk_ngl_uniform_state_get_value (state, program, GSK_NGL_UNIFORM_FORMAT_4FV, count, key, stamp, &info)))
{
if (info->info.initial || count != info->info.array_count || memcmp (u, value, sizeof *u * count) != 0)
{
GSK_NGL_UNIFORM_STATE_REPLACE (info, u, Uniform4f, count);
memcpy (u, value, sizeof (Uniform4f) * count);
gsk_ngl_uniform_info_changed (info, stamp);
}
}
}
static inline guint
gsk_ngl_uniform_state_fmix (guint program,
guint location)
{
guint h = (program << 16) | location;
h ^= h >> 16;
h *= 0x85ebca6b;
h ^= h >> 13;
h *= 0xc2b2ae35;
h ^= h >> 16;
return h;
}
/*
* gsk_ngl_uniform_state_apply:
* @state: the uniform state
* @program: the program id
* @location: the location of the uniform
* @offset: the offset of the data within the buffer
* @info: the uniform info
*
* This function can be used to apply state that was previously recorded
* by the #GskNglUniformState.
*
* It is specifically useful from the GskNglCommandQueue to execute uniform
* changes but only when they have changed from the current value.
*/
static inline void
gsk_ngl_uniform_state_apply (GskNglUniformState *state,
guint program,
guint location,
GskNglUniformInfo info)
{
guint index = gsk_ngl_uniform_state_fmix (program, location) % G_N_ELEMENTS (state->apply_hash);
gconstpointer dataptr = GSK_NGL_UNIFORM_VALUE (state->values_buf, info.offset);
/* aligned, can treat as unsigned */
if (*(guint *)&info == *(guint *)&state->apply_hash[index])
return;
state->apply_hash[index] = info;
/* TODO: We could do additional comparisons here to make sure we are
* changing state.
*/
switch (info.format)
{
case GSK_NGL_UNIFORM_FORMAT_1F:
glUniform1fv (location, 1, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_2F:
glUniform2fv (location, 1, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_3F:
glUniform3fv (location, 1, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_4F:
glUniform4fv (location, 1, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_1FV:
glUniform1fv (location, info.array_count, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_2FV:
glUniform2fv (location, info.array_count, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_3FV:
glUniform3fv (location, info.array_count, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_4FV:
glUniform4fv (location, info.array_count, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_1I:
case GSK_NGL_UNIFORM_FORMAT_TEXTURE:
glUniform1iv (location, 1, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_2I:
glUniform2iv (location, 1, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_3I:
glUniform3iv (location, 1, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_4I:
glUniform4iv (location, 1, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_1UI:
glUniform1uiv (location, 1, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_MATRIX: {
float mat[16];
graphene_matrix_to_float (dataptr, mat);
glUniformMatrix4fv (location, 1, GL_FALSE, mat);
#if 0
/* TODO: If Graphene can give us a peek here on platforms
* where the format is float[16] (most/all x86_64?) then
* We can avoid the SIMD operation to convert the format.
*/
G_STATIC_ASSERT (sizeof (graphene_matrix_t) == 16*4);
glUniformMatrix4fv (location, 1, GL_FALSE, dataptr);
#endif
}
break;
case GSK_NGL_UNIFORM_FORMAT_COLOR:
glUniform4fv (location, 1, dataptr);
break;
case GSK_NGL_UNIFORM_FORMAT_ROUNDED_RECT:
glUniform4fv (location, 3, dataptr);
break;
default:
g_assert_not_reached ();
}
}
G_END_DECLS
#endif /* GSK_NGL_UNIFORM_STATE_PRIVATE_H */
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