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platform_system_core/libpixelflinger/pixelflinger.cpp

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/* libs/pixelflinger/pixelflinger.cpp
**
** Copyright 2006, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <sys/time.h>
#include <pixelflinger/pixelflinger.h>
#include <private/pixelflinger/ggl_context.h>
#include "buffer.h"
#include "clear.h"
#include "picker.h"
#include "raster.h"
#include "scanline.h"
#include "trap.h"
#include "codeflinger/GGLAssembler.h"
#include "codeflinger/CodeCache.h"
#include <stdio.h>
namespace android {
// ----------------------------------------------------------------------------
// 8x8 Bayer dither matrix
static const uint8_t gDitherMatrix[GGL_DITHER_SIZE] = {
0, 32, 8, 40, 2, 34, 10, 42,
48, 16, 56, 24, 50, 18, 58, 26,
12, 44, 4, 36, 14, 46, 6, 38,
60, 28, 52, 20, 62, 30, 54, 22,
3, 35, 11, 43, 1, 33, 9, 41,
51, 19, 59, 27, 49, 17, 57, 25,
15, 47, 7, 39, 13, 45, 5, 37,
63, 31, 55, 23, 61, 29, 53, 21
};
static void ggl_init_procs(context_t* c);
static void ggl_set_scissor(context_t* c);
static void ggl_enable_blending(context_t* c, int enable);
static void ggl_enable_scissor_test(context_t* c, int enable);
static void ggl_enable_alpha_test(context_t* c, int enable);
static void ggl_enable_logic_op(context_t* c, int enable);
static void ggl_enable_dither(context_t* c, int enable);
static void ggl_enable_stencil_test(context_t* c, int enable);
static void ggl_enable_depth_test(context_t* c, int enable);
static void ggl_enable_aa(context_t* c, int enable);
static void ggl_enable_point_aa_nice(context_t* c, int enable);
static void ggl_enable_texture2d(context_t* c, int enable);
static void ggl_enable_w_lerp(context_t* c, int enable);
static void ggl_enable_fog(context_t* c, int enable);
static inline int min(int a, int b) CONST;
static inline int min(int a, int b) {
return a < b ? a : b;
}
static inline int max(int a, int b) CONST;
static inline int max(int a, int b) {
return a < b ? b : a;
}
// ----------------------------------------------------------------------------
void ggl_error(context_t* c, GGLenum error)
{
if (c->error == GGL_NO_ERROR)
c->error = error;
}
// ----------------------------------------------------------------------------
static void ggl_bindTexture(void* con, const GGLSurface* surface)
{
GGL_CONTEXT(c, con);
if (surface->format != c->activeTMU->surface.format)
ggl_state_changed(c, GGL_TMU_STATE);
ggl_set_surface(c, &(c->activeTMU->surface), surface);
}
static void ggl_bindTextureLod(void* con, GGLuint tmu,const GGLSurface* surface)
{
GGL_CONTEXT(c, con);
// All LODs must have the same format
ggl_set_surface(c, &c->state.texture[tmu].surface, surface);
}
static void ggl_colorBuffer(void* con, const GGLSurface* surface)
{
GGL_CONTEXT(c, con);
if (surface->format != c->state.buffers.color.format)
ggl_state_changed(c, GGL_CB_STATE);
if (surface->width > c->state.buffers.coverageBufferSize) {
// allocate the coverage factor buffer
free(c->state.buffers.coverage);
c->state.buffers.coverage = (int16_t*)malloc(surface->width * 2);
c->state.buffers.coverageBufferSize =
c->state.buffers.coverage ? surface->width : 0;
}
ggl_set_surface(c, &(c->state.buffers.color), surface);
if (c->state.buffers.read.format == 0) {
ggl_set_surface(c, &(c->state.buffers.read), surface);
}
ggl_set_scissor(c);
}
static void ggl_readBuffer(void* con, const GGLSurface* surface)
{
GGL_CONTEXT(c, con);
ggl_set_surface(c, &(c->state.buffers.read), surface);
}
static void ggl_depthBuffer(void* con, const GGLSurface* surface)
{
GGL_CONTEXT(c, con);
if (surface->format == GGL_PIXEL_FORMAT_Z_16) {
ggl_set_surface(c, &(c->state.buffers.depth), surface);
} else {
c->state.buffers.depth.format = GGL_PIXEL_FORMAT_NONE;
ggl_enable_depth_test(c, 0);
}
}
static void ggl_scissor(void* con, GGLint x, GGLint y,
GGLsizei width, GGLsizei height)
{
GGL_CONTEXT(c, con);
c->state.scissor.user_left = x;
c->state.scissor.user_top = y;
c->state.scissor.user_right = x + width;
c->state.scissor.user_bottom = y + height;
ggl_set_scissor(c);
}
// ----------------------------------------------------------------------------
static void enable_disable(context_t* c, GGLenum name, int en)
{
switch (name) {
case GGL_BLEND: ggl_enable_blending(c, en); break;
case GGL_SCISSOR_TEST: ggl_enable_scissor_test(c, en); break;
case GGL_ALPHA_TEST: ggl_enable_alpha_test(c, en); break;
case GGL_COLOR_LOGIC_OP: ggl_enable_logic_op(c, en); break;
case GGL_DITHER: ggl_enable_dither(c, en); break;
case GGL_STENCIL_TEST: ggl_enable_stencil_test(c, en); break;
case GGL_DEPTH_TEST: ggl_enable_depth_test(c, en); break;
case GGL_AA: ggl_enable_aa(c, en); break;
case GGL_TEXTURE_2D: ggl_enable_texture2d(c, en); break;
case GGL_W_LERP: ggl_enable_w_lerp(c, en); break;
case GGL_FOG: ggl_enable_fog(c, en); break;
case GGL_POINT_SMOOTH_NICE: ggl_enable_point_aa_nice(c, en); break;
}
}
static void ggl_enable(void* con, GGLenum name)
{
GGL_CONTEXT(c, con);
enable_disable(c, name, 1);
}
static void ggl_disable(void* con, GGLenum name)
{
GGL_CONTEXT(c, con);
enable_disable(c, name, 0);
}
static void ggl_enableDisable(void* con, GGLenum name, GGLboolean en)
{
GGL_CONTEXT(c, con);
enable_disable(c, name, en ? 1 : 0);
}
// ----------------------------------------------------------------------------
static void ggl_shadeModel(void* con, GGLenum mode)
{
GGL_CONTEXT(c, con);
switch (mode) {
case GGL_FLAT:
if (c->state.enables & GGL_ENABLE_SMOOTH) {
c->state.enables &= ~GGL_ENABLE_SMOOTH;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
break;
case GGL_SMOOTH:
if (!(c->state.enables & GGL_ENABLE_SMOOTH)) {
c->state.enables |= GGL_ENABLE_SMOOTH;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
break;
default:
ggl_error(c, GGL_INVALID_ENUM);
}
}
static void ggl_color4xv(void* con, const GGLclampx* color)
{
GGL_CONTEXT(c, con);
c->shade.r0 = gglFixedToIteratedColor(color[0]);
c->shade.g0 = gglFixedToIteratedColor(color[1]);
c->shade.b0 = gglFixedToIteratedColor(color[2]);
c->shade.a0 = gglFixedToIteratedColor(color[3]);
}
static void ggl_colorGrad12xv(void* con, const GGLcolor* grad)
{
GGL_CONTEXT(c, con);
// it is very important to round the iterated value here because
// the rasterizer doesn't clamp them, therefore the iterated value
//must absolutely be correct.
// GGLColor is encoded as 8.16 value
const int32_t round = 0x8000;
c->shade.r0 = grad[ 0] + round;
c->shade.drdx = grad[ 1];
c->shade.drdy = grad[ 2];
c->shade.g0 = grad[ 3] + round;
c->shade.dgdx = grad[ 4];
c->shade.dgdy = grad[ 5];
c->shade.b0 = grad[ 6] + round;
c->shade.dbdx = grad[ 7];
c->shade.dbdy = grad[ 8];
c->shade.a0 = grad[ 9] + round;
c->shade.dadx = grad[10];
c->shade.dady = grad[11];
}
static void ggl_zGrad3xv(void* con, const GGLfixed32* grad)
{
GGL_CONTEXT(c, con);
// z iterators are encoded as 0.32 fixed point and the z-buffer
// holds 16 bits, the rounding value is 0x8000.
const uint32_t round = 0x8000;
c->shade.z0 = grad[0] + round;
c->shade.dzdx = grad[1];
c->shade.dzdy = grad[2];
}
static void ggl_wGrad3xv(void* con, const GGLfixed* grad)
{
GGL_CONTEXT(c, con);
c->shade.w0 = grad[0];
c->shade.dwdx = grad[1];
c->shade.dwdy = grad[2];
}
// ----------------------------------------------------------------------------
static void ggl_fogGrad3xv(void* con, const GGLfixed* grad)
{
GGL_CONTEXT(c, con);
c->shade.f0 = grad[0];
c->shade.dfdx = grad[1];
c->shade.dfdy = grad[2];
}
static void ggl_fogColor3xv(void* con, const GGLclampx* color)
{
GGL_CONTEXT(c, con);
const int32_t r = gglClampx(color[0]);
const int32_t g = gglClampx(color[1]);
const int32_t b = gglClampx(color[2]);
c->state.fog.color[GGLFormat::ALPHA]= 0xFF; // unused
c->state.fog.color[GGLFormat::RED] = (r - (r>>8))>>8;
c->state.fog.color[GGLFormat::GREEN]= (g - (g>>8))>>8;
c->state.fog.color[GGLFormat::BLUE] = (b - (b>>8))>>8;
}
static void ggl_enable_fog(context_t* c, int enable)
{
const int e = (c->state.enables & GGL_ENABLE_FOG)?1:0;
if (e != enable) {
if (enable) c->state.enables |= GGL_ENABLE_FOG;
else c->state.enables &= ~GGL_ENABLE_FOG;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
// ----------------------------------------------------------------------------
static void ggl_blendFunc(void* con, GGLenum src, GGLenum dst)
{
GGL_CONTEXT(c, con);
c->state.blend.src = src;
c->state.blend.src_alpha = src;
c->state.blend.dst = dst;
c->state.blend.dst_alpha = dst;
c->state.blend.alpha_separate = 0;
if (c->state.enables & GGL_ENABLE_BLENDING) {
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
static void ggl_blendFuncSeparate(void* con,
GGLenum src, GGLenum dst,
GGLenum srcAlpha, GGLenum dstAplha)
{
GGL_CONTEXT(c, con);
c->state.blend.src = src;
c->state.blend.src_alpha = srcAlpha;
c->state.blend.dst = dst;
c->state.blend.dst_alpha = dstAplha;
c->state.blend.alpha_separate = 1;
if (c->state.enables & GGL_ENABLE_BLENDING) {
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
// ----------------------------------------------------------------------------
static void ggl_texEnvi(void* con, GGLenum target,
GGLenum pname,
GGLint param)
{
GGL_CONTEXT(c, con);
if (target != GGL_TEXTURE_ENV || pname != GGL_TEXTURE_ENV_MODE) {
ggl_error(c, GGL_INVALID_ENUM);
return;
}
switch (param) {
case GGL_REPLACE:
case GGL_MODULATE:
case GGL_DECAL:
case GGL_BLEND:
case GGL_ADD:
if (c->activeTMU->env != param) {
c->activeTMU->env = param;
ggl_state_changed(c, GGL_TMU_STATE);
}
break;
default:
ggl_error(c, GGL_INVALID_ENUM);
}
}
static void ggl_texEnvxv(void* con, GGLenum target,
GGLenum pname, const GGLfixed* params)
{
GGL_CONTEXT(c, con);
if (target != GGL_TEXTURE_ENV) {
ggl_error(c, GGL_INVALID_ENUM);
return;
}
switch (pname) {
case GGL_TEXTURE_ENV_MODE:
ggl_texEnvi(con, target, pname, params[0]);
break;
case GGL_TEXTURE_ENV_COLOR: {
uint8_t* const color = c->activeTMU->env_color;
const GGLclampx r = gglClampx(params[0]);
const GGLclampx g = gglClampx(params[1]);
const GGLclampx b = gglClampx(params[2]);
const GGLclampx a = gglClampx(params[3]);
color[0] = (a-(a>>8))>>8;
color[1] = (r-(r>>8))>>8;
color[2] = (g-(g>>8))>>8;
color[3] = (b-(b>>8))>>8;
break;
}
default:
ggl_error(c, GGL_INVALID_ENUM);
return;
}
}
static void ggl_texParameteri(void* con,
GGLenum target,
GGLenum pname,
GGLint param)
{
GGL_CONTEXT(c, con);
if (target != GGL_TEXTURE_2D) {
ggl_error(c, GGL_INVALID_ENUM);
return;
}
if (param == GGL_CLAMP_TO_EDGE)
param = GGL_CLAMP;
uint16_t* what = 0;
switch (pname) {
case GGL_TEXTURE_WRAP_S:
if ((param == GGL_CLAMP) ||
(param == GGL_REPEAT)) {
what = &c->activeTMU->s_wrap;
}
break;
case GGL_TEXTURE_WRAP_T:
if ((param == GGL_CLAMP) ||
(param == GGL_REPEAT)) {
what = &c->activeTMU->t_wrap;
}
break;
case GGL_TEXTURE_MIN_FILTER:
if ((param == GGL_NEAREST) ||
(param == GGL_NEAREST_MIPMAP_NEAREST) ||
(param == GGL_NEAREST_MIPMAP_LINEAR)) {
what = &c->activeTMU->min_filter;
param = GGL_NEAREST;
}
if ((param == GGL_LINEAR) ||
(param == GGL_LINEAR_MIPMAP_NEAREST) ||
(param == GGL_LINEAR_MIPMAP_LINEAR)) {
what = &c->activeTMU->min_filter;
param = GGL_LINEAR;
}
break;
case GGL_TEXTURE_MAG_FILTER:
if ((param == GGL_NEAREST) ||
(param == GGL_LINEAR)) {
what = &c->activeTMU->mag_filter;
}
break;
}
if (!what) {
ggl_error(c, GGL_INVALID_ENUM);
return;
}
if (*what != param) {
*what = param;
ggl_state_changed(c, GGL_TMU_STATE);
}
}
static void ggl_texCoordGradScale8xv(void* con, GGLint tmu, const int32_t* grad)
{
GGL_CONTEXT(c, con);
texture_t& u = c->state.texture[tmu];
u.shade.is0 = grad[0];
u.shade.idsdx = grad[1];
u.shade.idsdy = grad[2];
u.shade.it0 = grad[3];
u.shade.idtdx = grad[4];
u.shade.idtdy = grad[5];
u.shade.sscale= grad[6];
u.shade.tscale= grad[7];
}
static void ggl_texCoord2x(void* con, GGLfixed s, GGLfixed t)
{
GGL_CONTEXT(c, con);
c->activeTMU->shade.is0 = s;
c->activeTMU->shade.it0 = t;
c->activeTMU->shade.sscale= 0;
c->activeTMU->shade.tscale= 0;
}
static void ggl_texCoord2i(void* con, GGLint s, GGLint t)
{
ggl_texCoord2x(con, s<<16, t<<16);
}
static void ggl_texGeni(void* con, GGLenum coord, GGLenum pname, GGLint param)
{
GGL_CONTEXT(c, con);
if (pname != GGL_TEXTURE_GEN_MODE) {
ggl_error(c, GGL_INVALID_ENUM);
return;
}
uint32_t* coord_ptr = 0;
if (coord == GGL_S) coord_ptr = &(c->activeTMU->s_coord);
else if (coord == GGL_T) coord_ptr = &(c->activeTMU->t_coord);
if (coord_ptr) {
if (*coord_ptr != uint32_t(param)) {
*coord_ptr = uint32_t(param);
ggl_state_changed(c, GGL_TMU_STATE);
}
} else {
ggl_error(c, GGL_INVALID_ENUM);
}
}
static void ggl_activeTexture(void* con, GGLuint tmu)
{
GGL_CONTEXT(c, con);
if (tmu >= GGLuint(GGL_TEXTURE_UNIT_COUNT)) {
ggl_error(c, GGL_INVALID_ENUM);
return;
}
c->activeTMUIndex = tmu;
c->activeTMU = &(c->state.texture[tmu]);
}
// ----------------------------------------------------------------------------
static void ggl_colorMask(void* con, GGLboolean r,
GGLboolean g,
GGLboolean b,
GGLboolean a)
{
GGL_CONTEXT(c, con);
int mask = 0;
if (a) mask |= 1 << GGLFormat::ALPHA;
if (r) mask |= 1 << GGLFormat::RED;
if (g) mask |= 1 << GGLFormat::GREEN;
if (b) mask |= 1 << GGLFormat::BLUE;
if (c->state.mask.color != mask) {
c->state.mask.color = mask;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
static void ggl_depthMask(void* con, GGLboolean flag)
{
GGL_CONTEXT(c, con);
if (c->state.mask.depth != flag?1:0) {
c->state.mask.depth = flag?1:0;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
static void ggl_stencilMask(void* con, GGLuint mask)
{
GGL_CONTEXT(c, con);
if (c->state.mask.stencil != mask) {
c->state.mask.stencil = mask;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
// ----------------------------------------------------------------------------
static void ggl_alphaFuncx(void* con, GGLenum func, GGLclampx ref)
{
GGL_CONTEXT(c, con);
if ((func < GGL_NEVER) || (func > GGL_ALWAYS)) {
ggl_error(c, GGL_INVALID_ENUM);
return;
}
c->state.alpha_test.ref = gglFixedToIteratedColor(gglClampx(ref));
if (c->state.alpha_test.func != func) {
c->state.alpha_test.func = func;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
// ----------------------------------------------------------------------------
static void ggl_depthFunc(void* con, GGLenum func)
{
GGL_CONTEXT(c, con);
if ((func < GGL_NEVER) || (func > GGL_ALWAYS)) {
ggl_error(c, GGL_INVALID_ENUM);
return;
}
if (c->state.depth_test.func != func) {
c->state.depth_test.func = func;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
// ----------------------------------------------------------------------------
static void ggl_logicOp(void* con, GGLenum opcode)
{
GGL_CONTEXT(c, con);
if ((opcode < GGL_CLEAR) || (opcode > GGL_SET)) {
ggl_error(c, GGL_INVALID_ENUM);
return;
}
if (c->state.logic_op.opcode != opcode) {
c->state.logic_op.opcode = opcode;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
// ----------------------------------------------------------------------------
void ggl_set_scissor(context_t* c)
{
if (c->state.enables & GGL_ENABLE_SCISSOR_TEST) {
const int32_t l = c->state.scissor.user_left;
const int32_t t = c->state.scissor.user_top;
const int32_t r = c->state.scissor.user_right;
const int32_t b = c->state.scissor.user_bottom;
c->state.scissor.left = max(0, l);
c->state.scissor.right = min(c->state.buffers.color.width, r);
c->state.scissor.top = max(0, t);
c->state.scissor.bottom = min(c->state.buffers.color.height, b);
} else {
c->state.scissor.left = 0;
c->state.scissor.top = 0;
c->state.scissor.right = c->state.buffers.color.width;
c->state.scissor.bottom = c->state.buffers.color.height;
}
}
void ggl_enable_blending(context_t* c, int enable)
{
const int e = (c->state.enables & GGL_ENABLE_BLENDING)?1:0;
if (e != enable) {
if (enable) c->state.enables |= GGL_ENABLE_BLENDING;
else c->state.enables &= ~GGL_ENABLE_BLENDING;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
void ggl_enable_scissor_test(context_t* c, int enable)
{
const int e = (c->state.enables & GGL_ENABLE_SCISSOR_TEST)?1:0;
if (e != enable) {
if (enable) c->state.enables |= GGL_ENABLE_SCISSOR_TEST;
else c->state.enables &= ~GGL_ENABLE_SCISSOR_TEST;
ggl_set_scissor(c);
}
}
void ggl_enable_alpha_test(context_t* c, int enable)
{
const int e = (c->state.enables & GGL_ENABLE_ALPHA_TEST)?1:0;
if (e != enable) {
if (enable) c->state.enables |= GGL_ENABLE_ALPHA_TEST;
else c->state.enables &= ~GGL_ENABLE_ALPHA_TEST;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
void ggl_enable_logic_op(context_t* c, int enable)
{
const int e = (c->state.enables & GGL_ENABLE_LOGIC_OP)?1:0;
if (e != enable) {
if (enable) c->state.enables |= GGL_ENABLE_LOGIC_OP;
else c->state.enables &= ~GGL_ENABLE_LOGIC_OP;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
void ggl_enable_dither(context_t* c, int enable)
{
const int e = (c->state.enables & GGL_ENABLE_DITHER)?1:0;
if (e != enable) {
if (enable) c->state.enables |= GGL_ENABLE_DITHER;
else c->state.enables &= ~GGL_ENABLE_DITHER;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
void ggl_enable_stencil_test(context_t* /*c*/, int /*enable*/)
{
}
void ggl_enable_depth_test(context_t* c, int enable)
{
if (c->state.buffers.depth.format == 0)
enable = 0;
const int e = (c->state.enables & GGL_ENABLE_DEPTH_TEST)?1:0;
if (e != enable) {
if (enable) c->state.enables |= GGL_ENABLE_DEPTH_TEST;
else c->state.enables &= ~GGL_ENABLE_DEPTH_TEST;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
void ggl_enable_aa(context_t* c, int enable)
{
const int e = (c->state.enables & GGL_ENABLE_AA)?1:0;
if (e != enable) {
if (enable) c->state.enables |= GGL_ENABLE_AA;
else c->state.enables &= ~GGL_ENABLE_AA;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
void ggl_enable_point_aa_nice(context_t* c, int enable)
{
const int e = (c->state.enables & GGL_ENABLE_POINT_AA_NICE)?1:0;
if (e != enable) {
if (enable) c->state.enables |= GGL_ENABLE_POINT_AA_NICE;
else c->state.enables &= ~GGL_ENABLE_POINT_AA_NICE;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
void ggl_enable_w_lerp(context_t* c, int enable)
{
const int e = (c->state.enables & GGL_ENABLE_W)?1:0;
if (e != enable) {
if (enable) c->state.enables |= GGL_ENABLE_W;
else c->state.enables &= ~GGL_ENABLE_W;
ggl_state_changed(c, GGL_PIXEL_PIPELINE_STATE);
}
}
void ggl_enable_texture2d(context_t* c, int enable)
{
if (c->activeTMU->enable != enable) {
const uint32_t tmu = c->activeTMUIndex;
c->activeTMU->enable = enable;
const uint32_t mask = 1UL << tmu;
if (enable) c->state.enabled_tmu |= mask;
else c->state.enabled_tmu &= ~mask;
if (c->state.enabled_tmu) c->state.enables |= GGL_ENABLE_TMUS;
else c->state.enables &= ~GGL_ENABLE_TMUS;
ggl_state_changed(c, GGL_TMU_STATE);
}
}
// ----------------------------------------------------------------------------
int64_t ggl_system_time()
{
#if defined(HAVE_POSIX_CLOCKS)
struct timespec t;
t.tv_sec = t.tv_nsec = 0;
clock_gettime(CLOCK_THREAD_CPUTIME_ID, &t);
return int64_t(t.tv_sec)*1000000000LL + t.tv_nsec;
#else
// we don't support the clocks here.
struct timeval t;
t.tv_sec = t.tv_usec = 0;
gettimeofday(&t, NULL);
return int64_t(t.tv_sec)*1000000000LL + int64_t(t.tv_usec)*1000LL;
#endif
}
// ----------------------------------------------------------------------------
void ggl_init_procs(context_t* c)
{
GGLContext& procs = *(GGLContext*)c;
GGL_INIT_PROC(procs, scissor);
GGL_INIT_PROC(procs, activeTexture);
GGL_INIT_PROC(procs, bindTexture);
GGL_INIT_PROC(procs, bindTextureLod);
GGL_INIT_PROC(procs, colorBuffer);
GGL_INIT_PROC(procs, readBuffer);
GGL_INIT_PROC(procs, depthBuffer);
GGL_INIT_PROC(procs, enable);
GGL_INIT_PROC(procs, disable);
GGL_INIT_PROC(procs, enableDisable);
GGL_INIT_PROC(procs, shadeModel);
GGL_INIT_PROC(procs, color4xv);
GGL_INIT_PROC(procs, colorGrad12xv);
GGL_INIT_PROC(procs, zGrad3xv);
GGL_INIT_PROC(procs, wGrad3xv);
GGL_INIT_PROC(procs, fogGrad3xv);
GGL_INIT_PROC(procs, fogColor3xv);
GGL_INIT_PROC(procs, blendFunc);
GGL_INIT_PROC(procs, blendFuncSeparate);
GGL_INIT_PROC(procs, texEnvi);
GGL_INIT_PROC(procs, texEnvxv);
GGL_INIT_PROC(procs, texParameteri);
GGL_INIT_PROC(procs, texCoord2i);
GGL_INIT_PROC(procs, texCoord2x);
GGL_INIT_PROC(procs, texCoordGradScale8xv);
GGL_INIT_PROC(procs, texGeni);
GGL_INIT_PROC(procs, colorMask);
GGL_INIT_PROC(procs, depthMask);
GGL_INIT_PROC(procs, stencilMask);
GGL_INIT_PROC(procs, alphaFuncx);
GGL_INIT_PROC(procs, depthFunc);
GGL_INIT_PROC(procs, logicOp);
ggl_init_clear(c);
}
void ggl_init_context(context_t* c)
{
memset(c, 0, sizeof(context_t));
ggl_init_procs(c);
ggl_init_trap(c);
ggl_init_scanline(c);
ggl_init_texture(c);
ggl_init_picker(c);
ggl_init_raster(c);
c->formats = gglGetPixelFormatTable();
c->state.blend.src = GGL_ONE;
c->state.blend.dst = GGL_ZERO;
c->state.blend.src_alpha = GGL_ONE;
c->state.blend.dst_alpha = GGL_ZERO;
c->state.mask.color = 0xF;
c->state.mask.depth = 0;
c->state.mask.stencil = 0xFFFFFFFF;
c->state.logic_op.opcode = GGL_COPY;
c->state.alpha_test.func = GGL_ALWAYS;
c->state.depth_test.func = GGL_LESS;
c->state.depth_test.clearValue = FIXED_ONE;
c->shade.w0 = FIXED_ONE;
memcpy(c->ditherMatrix, gDitherMatrix, sizeof(gDitherMatrix));
}
void ggl_uninit_context(context_t* c)
{
ggl_uninit_scanline(c);
}
// ----------------------------------------------------------------------------
}; // namespace android
// ----------------------------------------------------------------------------
using namespace android;
ssize_t gglInit(GGLContext** context)
{
void* const base = malloc(sizeof(context_t) + 32);
if (base) {
// always align the context on cache lines
context_t *c = (context_t *)((ptrdiff_t(base)+31) & ~0x1FL);
ggl_init_context(c);
c->base = base;
*context = (GGLContext*)c;
} else {
return -1;
}
return 0;
}
ssize_t gglUninit(GGLContext* con)
{
GGL_CONTEXT(c, (void*)con);
ggl_uninit_context(c);
free(c->base);
return 0;
}
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