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pgeGfx.c
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pgeGfx.c
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/*
* This file is part of "Phoenix Game Engine".
*
* Copyright (C) 2008 Phoenix Game Engine
* Copyright (C) 2008 InsertWittyName <tias_dp@hotmail.com>
* Copyright (C) 2008 MK2k <pge@mk2k.net>
*
* Phoenix Game Engine is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* Phoenix Game Engine 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with Phoenix Game Engine. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <pspkernel.h>
#include <pspdisplay.h>
#include <pspgu.h>
#include <pspgum.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <pspge.h>
#include <stdarg.h>
#include <stdlib.h>
#include <png.h>
#include "pgeGfx.h"
#include "pgeVram.h"
#include "pgeMath.h"
#ifndef __PSP__
#include "SDL.h"
#include "SDL_opengl.h"
GLuint emuGlTexture;
SDL_Surface* drawContext;
#endif
#define RGBA8888(col,r,g,b,a) { \
a=(col>>24)&0xFF;\
b=(col>>16)&0xFF;\
g=(col>>8)&0xFF;\
r=(col&0xFF);\
}
#define A(color) ((u8)(color >> 24 & 0xFF))
#define B(color) ((u8)(color >> 16 & 0xFF))
#define G(color) ((u8)(color >> 8 & 0xFF))
#define R(color) ((u8)(color & 0xFF))
#define PGE_SCREEN_WIDTH 480
#define PGE_SCREEN_HEIGHT 272
#define PGE_FRAME_BUFFER_WIDTH 512
#define PGE_FRAME_BUFFER_SIZE (PGE_FRAME_BUFFER_WIDTH*PGE_SCREEN_HEIGHT)
static unsigned int __attribute__((aligned(64))) pgeGfxDisplayList[2][262144/4];
static unsigned int pgeGfxDisplayListId = 0;
static void* pgeGfxFrontbuffer = NULL;
static void* pgeGfxDepthbuffer = NULL;
static void* pgeGfxBackbuffer = NULL;
static void* pgeGfxFramebuffer = NULL;
static unsigned int pgeGfxInitialized = 0;
static unsigned int pgeGfxDisplayListAvail = 0;
static unsigned int pgeGfxPsm = PGE_PIXEL_FORMAT_8888;
static unsigned int pgeGfxBpp = 4;
static int pgeGfxBlendMode = PGE_BLEND_MODE_REGULAR;
static const ScePspIMatrix4 pgeGfxDitherMatrix = {{0, 8, 2, 10},
{12, 4, 14, 6},
{3, 11, 1, 9},
{15, 7, 13, 5}};
unsigned int *pgeGfxGetFramebuffer(void)
{
return (unsigned int *)pgeGfxFramebuffer;
}
int pgeGfxInit(enum pgePixelFormat pixelformat)
{
if (pgeGfxInitialized != 0)
return 0;
pgeGfxInitialized = 1;
#ifndef __PSP__
int error;
error = SDL_Init(SDL_INIT_VIDEO);
// Create a double-buffered draw context
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
Uint32 flags;
flags = SDL_OPENGL;
drawContext = SDL_SetVideoMode(480, 272, 0, flags);
glGenTextures(1, &emuGlTexture);
glBindTexture(GL_TEXTURE_2D, emuGlTexture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
SDL_WM_SetCaption("Phoenix Game Engine", NULL);
#endif
switch(pixelformat)
{
case PGE_PIXEL_FORMAT_4444:
case PGE_PIXEL_FORMAT_5650:
case PGE_PIXEL_FORMAT_5551:
pgeGfxFrontbuffer = pgeVramRelativePointer(pgeVramAlloc(PGE_FRAME_BUFFER_SIZE<<1));
pgeGfxBackbuffer = pgeVramRelativePointer(pgeVramAlloc(PGE_FRAME_BUFFER_SIZE<<1));
pgeGfxDepthbuffer = pgeVramRelativePointer(pgeVramAlloc(PGE_FRAME_BUFFER_SIZE<<1));
pgeGfxBpp = 2;
pgeGfxPsm = pixelformat;
break;
default:
pgeGfxFrontbuffer = pgeVramRelativePointer(pgeVramAlloc(PGE_FRAME_BUFFER_SIZE<<2));
pgeGfxBackbuffer = pgeVramRelativePointer(pgeVramAlloc(PGE_FRAME_BUFFER_SIZE<<2));
pgeGfxDepthbuffer = pgeVramRelativePointer(pgeVramAlloc(PGE_FRAME_BUFFER_SIZE<<1));
pgeGfxBpp = 4;
pgeGfxPsm = PGE_PIXEL_FORMAT_8888;
break;
}
pgeGfxFramebuffer = pgeVramAbsolutePointer(pgeGfxFrontbuffer);
sceGuInit();
// setup GU
sceGuStart(GU_DIRECT, pgeGfxDisplayList[pgeGfxDisplayListId]);
sceGuDrawBuffer(pgeGfxPsm, pgeGfxFrontbuffer, PGE_FRAME_BUFFER_WIDTH);
sceGuDispBuffer(512, 512, pgeGfxBackbuffer, PGE_FRAME_BUFFER_WIDTH);
sceGuDepthBuffer(pgeGfxDepthbuffer, PGE_FRAME_BUFFER_WIDTH);
sceGuOffset(2048 - (PGE_SCREEN_WIDTH>>1), 2048 - (PGE_SCREEN_HEIGHT>>1));
sceGuViewport(2048, 2048, PGE_SCREEN_WIDTH, PGE_SCREEN_HEIGHT);
// Scissoring
sceGuScissor(0, 0, PGE_SCREEN_WIDTH, PGE_SCREEN_HEIGHT);
sceGuEnable(GU_SCISSOR_TEST);
// Backface culling
sceGuFrontFace(GU_CCW);
sceGuEnable(GU_CULL_FACE);
// Depth test
sceGuDepthRange(65535, 0);
sceGuDepthFunc(GU_GEQUAL);
sceGuDisable(GU_DEPTH_TEST);
//sceGuDepthMask(GU_TRUE); // disable z-writes
sceGuEnable(GU_CLIP_PLANES);
// Texturing
sceGuEnable(GU_TEXTURE_2D);
sceGuShadeModel(GU_SMOOTH);
sceGuTexWrap(GU_REPEAT, GU_REPEAT);
sceGuTexFilter(GU_LINEAR,GU_LINEAR);
sceGuTexFunc(GU_TFX_REPLACE, GU_TCC_RGBA);
sceGuTexEnvColor(0xFFFFFFFF);
sceGuColor(0xFFFFFFFF);
sceGuAmbientColor(0xFFFFFFFF);
sceGuTexOffset(0.0f, 0.0f);
sceGuTexScale(1.0f, 1.0f);
// Blending
sceGuEnable(GU_BLEND);
sceGuBlendFunc(GU_ADD, GU_SRC_ALPHA, GU_ONE_MINUS_SRC_ALPHA, 0, 0);
if(pgeGfxBpp < 4)
{
sceGuSetDither(&pgeGfxDitherMatrix);
sceGuEnable(GU_DITHER);
}
// Projection
sceGumMatrixMode(GU_PROJECTION);
sceGumLoadIdentity();
sceGumPerspective(60.0f, 480.0f/272.0f, 1.0f, 1000.0f);
sceGumMatrixMode(GU_VIEW);
sceGumLoadIdentity();
sceGumMatrixMode(GU_MODEL);
sceGumLoadIdentity();
sceGuClearColor(0x0);
sceGuClear(GU_COLOR_BUFFER_BIT);
sceGuFinish();
sceGuSync(0,0);
sceDisplayWaitVblankStartCB();
pgeGfxFramebuffer = pgeVramAbsolutePointer(sceGuSwapBuffers());
sceGuDisplay(1);
return 1;
}
/*void pgeGfxSetMode2D(void)
{
sceGumMatrixMode(GU_PROJECTION);
sceGumLoadIdentity();
sceGumOrtho(0.0f, 480.0f, 272.0f, 0.0f, -1.0f, 1.0f);
sceGumMatrixMode(GU_VIEW);
sceGumLoadIdentity();
sceGumMatrixMode(GU_MODEL);
sceGumLoadIdentity();
}
void pgeGfxSetMode3D(float fov)
{
sceGumMatrixMode(GU_PROJECTION);
sceGumLoadIdentity();
sceGumPerspective(fov, 480.0f/272.0f, 1.0f, 1000.0f);
sceGumMatrixMode(GU_VIEW);
sceGumLoadIdentity();
sceGumMatrixMode(GU_MODEL);
sceGumLoadIdentity();
}*/
int currentmatrix;
void pgeGfxLoadIdentity(void)
{
sceGumLoadIdentity();
}
void pgeGfxMatrixMode(int mode)
{
sceGumMatrixMode(mode);
currentmatrix = mode;
}
static float pgeGfxNear = 0.0f;
static float pgeGfxFar = 0.0f;
void pgeGfxPerspective(float fovy, float aspect, float near, float far)
{
sceGumPerspective(fovy, aspect, near, far);
pgeGfxNear = near;
pgeGfxFar = far;
}
void pgeGfxLookAt(ScePspFVector3* eye, ScePspFVector3* center, ScePspFVector3* up)
{
sceGumLookAt(eye, center, up);
}
void pgeGfxRotateX(float angle)
{
sceGumRotateX(angle);
}
void pgeGfxRotateY(float angle)
{
sceGumRotateY(angle);
}
/*void pgeGfxSetMode3DCamera(float fov, pgeCamera *cam)
{
sceGumMatrixMode(GU_PROJECTION);
sceGumLoadIdentity();
sceGumPerspective(fov, 480.0f/272.0f, 1.0f, 1000.0f);
sceGumMatrixMode(GU_VIEW);
sceGumLoadIdentity();
sceGumLookAt(&cam->eye, &cam->center, &cam->up);
sceGumStoreMatrix(&view);
printf("x.x = %f, x.y = %f, x.z = %f, x.w = %f,"
"y.x = %f, y.y = %f, y.z = %f, y.w = %f,"
"z.x = %f, z.y = %f, z.z = %f, z.w = %f,"
"w.x = %f, w.y = %f, w.z = %f, w.w = %f\n", view.x.x, view.x.y, view.x.z, view.x.w, view.y.x, view.y.y, view.y.z, view.y.w, view.z.x, view.z.y, view.z.z, view.z.w, view.w.x, view.w.y, view.w.z, view.w.w);
sceGumMatrixMode(GU_MODEL);
sceGumLoadIdentity();
}*/
int pgeGfxGetMatrix(ScePspFMatrix4 *m, int mode)
{
sceGumMatrixMode(mode);
sceGumStoreMatrix(m);
sceGumMatrixMode(currentmatrix);
return 1;
}
int pgeGfxProject(ScePspFVector3 *object, ScePspFVector3 *screen)
{
ScePspFMatrix4 m, proj, view, model;
float w;
pgeGfxGetMatrix(&proj, PGE_GFX_PROJECTION);
pgeGfxGetMatrix(&view, PGE_GFX_VIEW);
pgeGfxGetMatrix(&model, PGE_GFX_MODEL);
gumMultMatrix(&m, &proj, &view);
gumMultMatrix(&m, &m, &model);
screen->x = object->x * m.x.x + object->y * m.y.x + object->z * m.z.x + m.w.x;
screen->y = object->x * m.x.y + object->y * m.y.y + object->z * m.z.y + m.w.y;
screen->z = object->x * m.x.z + object->y * m.y.z + object->z * m.z.z + m.w.z;
w = object->x * m.x.w + object->y * m.y.w + object->z * m.z.w + m.w.w;
if(w == 0)
return 0;
screen->x /= w;
screen->y /= w;
screen->z /= w;
screen->x = screen->x * 0.5f + 0.5f;
screen->y = screen->y * 0.5f + 0.5f;
//screen->z = screen->z * 0.5f + 0.5f;
screen->x = screen->x * 480.0f;
screen->y = (1.0f - screen->y) * 272.0f;
return 1;
}
int pgeGfxUnproject(ScePspFVector3 *screen, ScePspFVector3 *object)
{
screen->x = screen->x / 480.f;
screen->y = (272.0f - screen->y) / 272.f;
screen->x = screen->x * 2 - 1;
screen->y = screen->y * 2 - 1;
ScePspFMatrix4 m, proj, view, model;
float w;
pgeGfxGetMatrix(&proj, PGE_GFX_PROJECTION);
pgeGfxGetMatrix(&view, PGE_GFX_VIEW);
pgeGfxGetMatrix(&model, PGE_GFX_MODEL);
gumMultMatrix(&m, &proj, &view);
gumMultMatrix(&m, &m, &model);
gumFullInverse(&m, &m);
object->x = screen->x * m.x.x + screen->y * m.y.x + screen->z * m.z.x + m.w.x;
object->y = screen->x * m.x.y + screen->y * m.y.y + screen->z * m.z.y + m.w.y;
object->z = screen->x * m.x.z + screen->y * m.y.z + screen->z * m.z.z + m.w.z;
w = screen->x * m.x.w + screen->y * m.y.w + screen->z * m.z.w + m.w.w;
if(w == 0)
return 0;
object->x /= w;
object->y /= w;
object->z /= w;
return 1;
}
void pgeGfxShutdown(void)
{
if (!pgeGfxInitialized)
return;
pgeGfxStartDrawing();
pgeVramFree(pgeVramAbsolutePointer(pgeGfxBackbuffer));
pgeVramFree(pgeVramAbsolutePointer(pgeGfxFrontbuffer));
pgeGfxInitialized = 0;
pgeGfxDisplayListAvail = 0;
sceGuTerm();
}
void pgeGfxStartDrawing(void)
{
if(pgeGfxDisplayListAvail)
return;
sceGuStart(GU_DIRECT, pgeGfxDisplayList[pgeGfxDisplayListId]);
pgeGfxDisplayListId ^= 1;
pgeGfxDisplayListAvail = 1;
}
void pgeGfxEndDrawing(void)
{
if(!pgeGfxDisplayListAvail)
return;
pgeGfxDisplayListAvail = 0;
sceGuFinish();
sceGuSync(0,0);
}
void pgeGfxSwapBuffers(enum pgeWaitVsync vsync)
{
if(vsync)
sceDisplayWaitVblankStart();
pgeGfxFramebuffer = pgeVramAbsolutePointer(sceGuSwapBuffers());
}
int pgeGfxSetBlendMode(enum pgeBlendMode mode)
{
int oldmode = pgeGfxBlendMode;
if(mode == PGE_BLEND_MODE_TRANSPARENT)
{
sceGuBlendFunc(GU_ADD, GU_SRC_ALPHA, GU_FIX, 0xFFFFFFFF, 0xFFFFFFFF);
//sceGuDepthMask(GU_TRUE);
}
else
{
sceGuBlendFunc(GU_ADD, GU_SRC_ALPHA, GU_ONE_MINUS_SRC_ALPHA, 0, 0);
sceGuDepthMask(GU_FALSE);
}
pgeGfxBlendMode = mode;
return oldmode;
}
void pgeGfxClearScreen(unsigned int color)
{
pgeGfxStartDrawing();
sceGuClearColor(color);
sceGuClearDepth(0);
sceGuClear(GU_COLOR_BUFFER_BIT|GU_DEPTH_BUFFER_BIT|GU_FAST_CLEAR_BIT);
}
unsigned int pgeGfxCreateColor(unsigned char r, unsigned char g, unsigned char b, unsigned char a)
{
return a << 24 | b << 16 | g << 8 | r;
}
void pgeGfxRenderToTexture(pgeTexture *texture)
{
if(texture->location != PGE_VRAM)
return;
pgeGfxStartDrawing();
//sceGuSendCommandi(211,((GU_COLOR_BUFFER_BIT|GU_STENCIL_BUFFER_BIT) << 8)|0x1);
sceGuSync(0, 2);
sceKernelDcacheWritebackAll();
sceGuDrawBufferList(texture->format, pgeVramRelativePointer(texture->data), texture->textureWidth);
sceGuOffset(2048 - (texture->width>>1), 2048 - (texture->height>>1));
sceGuViewport(2048, 2048, texture->width, texture->height);
sceGuScissor(0, 0, texture->width, texture->height);
}
void pgeGfxRenderToScreen()
{
pgeGfxStartDrawing();
//sceGuSendCommandi(211,0);
sceGuSync(0, 2);
sceKernelDcacheWritebackAll();
sceGuDrawBufferList(pgeGfxPsm, pgeVramRelativePointer(pgeGfxFramebuffer), PGE_FRAME_BUFFER_WIDTH);
sceGuOffset(2048 - (PGE_SCREEN_WIDTH>>1), 2048 - (PGE_SCREEN_HEIGHT>>1));
sceGuViewport(2048, 2048, PGE_SCREEN_WIDTH, PGE_SCREEN_HEIGHT);
sceGuScissor(0, 0, PGE_SCREEN_WIDTH, PGE_SCREEN_HEIGHT);
}
void pgeGfxSetTransparent(unsigned int color)
{
sceGuColorFunc(GU_NOTEQUAL, color, 0xFFFFFFFF);
sceGuEnable(GU_COLOR_TEST);
}
void pgeGfxUnsetTransparent(void)
{
sceGuDisable(GU_COLOR_TEST);
}
void pgeGfxDrawLine(float startx, float starty, float endx, float endy, unsigned int color)
{
pgeGfxStartDrawing();
pgeVertV* vertices = (pgeVertV*)sceGuGetMemory((sizeof(pgeVertV))<<1);
vertices[0].x = startx;
vertices[0].y = starty;
vertices[0].z = 0.0f;
vertices[1].x = endx;
vertices[1].y = endy;
vertices[1].z = 0.0f;
sceGuDisable(GU_TEXTURE_2D);
sceGuColor(color);
sceGuShadeModel(GU_FLAT);
sceGuDrawArray(GU_LINES, GU_VERTEX_32BITF|GU_TRANSFORM_2D, 2, 0, vertices);
sceGuShadeModel(GU_SMOOTH);
sceGuEnable(GU_TEXTURE_2D);
}
void pgeGfxDrawStar(float x, float y, float outerradius, float innerradius, unsigned int numpoints, unsigned int color, float angle)
{
angle = -angle;
pgeGfxStartDrawing();
const unsigned int numPointsReal = numpoints<<1;
const float stepSize = (GU_PI*2)/(numPointsReal);
unsigned int step;
unsigned int stepPlusOne;
const unsigned int numStepsPlusOne = numPointsReal + 1;
pgeVertV* vertices = (pgeVertV*) sceGuGetMemory((numPointsReal + 2) * sizeof(pgeVertV));
vertices[0].x = x;
vertices[0].y = y;
vertices[0].z = 0.0f;
for(step = 1; step < numStepsPlusOne; step += 2)
{
vertices[step].x = x + pgeMathSin(step * stepSize + angle) * outerradius;
vertices[step].y = y + pgeMathCos(step * stepSize + angle) * outerradius;
vertices[step].z = 0.0f;
stepPlusOne = step + 1;
vertices[stepPlusOne].x = x + pgeMathSin(stepPlusOne * stepSize + angle) * innerradius;
vertices[stepPlusOne].y = y + pgeMathCos(stepPlusOne * stepSize + angle) * innerradius;
vertices[stepPlusOne].z = 0.0f;
}
vertices[numStepsPlusOne].x = vertices[1].x;
vertices[numStepsPlusOne].y = vertices[1].y;
vertices[numStepsPlusOne].z = 0.0f;
sceGuDisable(GU_TEXTURE_2D);
sceGuColor(color);
sceGuShadeModel(GU_FLAT);
sceGuDrawArray(GU_TRIANGLE_FAN, GU_VERTEX_32BITF|GU_TRANSFORM_2D, numPointsReal + 2, 0, vertices);
sceGuShadeModel(GU_SMOOTH);
sceGuEnable(GU_TEXTURE_2D);
}
void pgeGfxDrawStarOutline(float x, float y, float outerradius, float innerradius, unsigned int numpoints, unsigned int color, float angle)
{
angle = -angle;
pgeGfxStartDrawing();
const unsigned int numPointsReal = numpoints<<1;
const float stepSize = (GU_PI*2)/(numPointsReal);
unsigned int step;
unsigned int stepPlusOne;
const unsigned int numStepsPlusOne = numPointsReal + 1;
pgeVertV* vertices = (pgeVertV*) sceGuGetMemory(numStepsPlusOne * sizeof(pgeVertV));
for(step = 0; step < numStepsPlusOne; step += 2)
{
vertices[step].x = x - pgeMathSin(step * stepSize + angle) * outerradius;
vertices[step].y = y - pgeMathCos(step * stepSize + angle) * outerradius;
vertices[step].z = 0.0f;
stepPlusOne = step + 1;
vertices[stepPlusOne].x = x - pgeMathSin(stepPlusOne * stepSize + angle) * innerradius;
vertices[stepPlusOne].y = y - pgeMathCos(stepPlusOne * stepSize + angle) * innerradius;
vertices[stepPlusOne].z = 0.0f;
}
vertices[numStepsPlusOne].x = vertices[0].x;
vertices[numStepsPlusOne].y = vertices[0].y;
vertices[numStepsPlusOne].z = 0.0f;
sceGuDisable(GU_TEXTURE_2D);
sceGuColor(color);
sceGuShadeModel(GU_FLAT);
sceGuDrawArray(GU_LINE_STRIP, GU_VERTEX_32BITF|GU_TRANSFORM_2D, numStepsPlusOne, 0, vertices);
sceGuShadeModel(GU_SMOOTH);
sceGuEnable(GU_TEXTURE_2D);
}
void pgeGfxDrawCircle(float x, float y, float radius, unsigned int numsteps, unsigned int color)
{
pgeGfxStartDrawing();
const float stepSize = (GU_PI*2)/numsteps;
const unsigned int numStepsPlusOne = numsteps + 1;
const unsigned int numStepsPlusTwo = numsteps + 2;
pgeVertV* vertices = (pgeVertV*) sceGuGetMemory(numStepsPlusTwo * sizeof(pgeVertV));
vertices[0].x = x;
vertices[0].y = y;
vertices[0].z = 0.0f;
unsigned int step;
for(step = 1; step < numStepsPlusOne; step++)
{
vertices[step].x = x + pgeMathSin(step * stepSize) * radius;
vertices[step].y = y + pgeMathCos(step * stepSize) * radius;
vertices[step].z = 0.0f;
}
vertices[numStepsPlusOne].x = vertices[1].x;
vertices[numStepsPlusOne].y = vertices[1].y;
vertices[numStepsPlusOne].z = 0.0f;
sceGuDisable(GU_TEXTURE_2D);
sceGuColor(color);
sceGuShadeModel(GU_FLAT);
sceGuDrawArray(GU_TRIANGLE_FAN, GU_VERTEX_32BITF|GU_TRANSFORM_2D, numStepsPlusTwo, 0, vertices);
sceGuShadeModel(GU_SMOOTH);
sceGuEnable(GU_TEXTURE_2D);
}
void pgeGfxDrawCircleOutline(float x, float y, float radius, unsigned int numsteps, unsigned int color)
{
pgeGfxStartDrawing();
const float stepSize = (GU_PI*2)/numsteps;
const unsigned int numStepsPlusOne = numsteps + 1;
pgeVertV* vertices = (pgeVertV*) sceGuGetMemory(numStepsPlusOne * sizeof(pgeVertV));
unsigned int step;
for(step = 0; step < numStepsPlusOne; step++)
{
vertices[step].x = x + pgeMathSin(step * stepSize) * radius;
vertices[step].y = y + pgeMathCos(step * stepSize) * radius;
vertices[step].z = 0.0f;
}
vertices[numStepsPlusOne].x = vertices[0].x;
vertices[numStepsPlusOne].y = vertices[0].y;
vertices[numStepsPlusOne].z = 0.0f;
sceGuDisable(GU_TEXTURE_2D);
sceGuColor(color);
sceGuShadeModel(GU_FLAT);
sceGuDrawArray(GU_LINE_STRIP, GU_VERTEX_32BITF|GU_TRANSFORM_2D, numStepsPlusOne, 0, vertices);
sceGuShadeModel(GU_SMOOTH);
sceGuEnable(GU_TEXTURE_2D);
}
void pgeGfxDrawRectOutline(pgeRect *destrect, unsigned int color, float angle)
{
pgeGfxStartDrawing();
if(angle == 0.0f)
{
pgeVertV* vertices = (pgeVertV*)sceGuGetMemory(5 * sizeof(pgeVertV));
vertices[0].x = destrect->x;
vertices[0].y = destrect->y;
vertices[0].z = 0.0f;
vertices[1].x = destrect->x + destrect->w;
vertices[1].y = destrect->y;
vertices[1].z = 0.0f;
vertices[2].x = destrect->x + destrect->w + 1;
vertices[2].y = destrect->y + destrect->h;
vertices[2].z = 0.0f;
vertices[3].x = destrect->x;
vertices[3].y = destrect->y + destrect->h;
vertices[3].z = 0.0f;
vertices[4].x = destrect->x;
vertices[4].y = destrect->y;
vertices[4].z = 0.0f;
sceGuDisable(GU_TEXTURE_2D);
sceGuColor(color);
sceGuShadeModel(GU_FLAT);
sceGuDrawArray(GU_LINE_STRIP, GU_VERTEX_32BITF|GU_TRANSFORM_2D, 5, 0, vertices);
sceGuShadeModel(GU_SMOOTH);
sceGuEnable(GU_TEXTURE_2D);
}
else
{
float x = destrect->x;
float y = destrect->y;
float width = destrect->w;
float height = destrect->h;
x += width * 0.5f;
y += height * 0.5f;
float c, s;
pgeMathSincos(angle, &s, &c);
width *= 0.5f;
height *= 0.5f;
float cw = c*width;
float sw = s*width;
float ch = c*height;
float sh = s*height;
pgeVertV* vertices = (pgeVertV*)sceGuGetMemory(5 * sizeof(pgeVertV));
vertices[0].x = x - cw + sh;
vertices[0].y = y - sw - ch;
vertices[0].z = 0;
vertices[1].x = x - cw - sh;
vertices[1].y = y - sw + ch;
vertices[1].z = 0;
vertices[2].x = x + cw - sh;
vertices[2].y = y + sw + ch;
vertices[2].z = 0;
vertices[3].x = x + cw + sh;
vertices[3].y = y + sw - ch;
vertices[3].z = 0;
vertices[4].x = x - cw + sh;
vertices[4].y = y - sw - ch;
vertices[4].z = 0;
sceGuDisable(GU_TEXTURE_2D);
sceGuColor(color);
sceGuShadeModel(GU_FLAT);
sceGuDrawArray(GU_LINE_STRIP, GU_VERTEX_32BITF|GU_TRANSFORM_2D, 5, 0, vertices);
sceGuShadeModel(GU_SMOOTH);
sceGuEnable(GU_TEXTURE_2D);
}
}
void pgeGfxDrawRect(pgeRect *destrect, unsigned int color, float angle)
{
pgeGfxStartDrawing();
if(angle == 0.0f)
{
pgeVertV* vertices = (pgeVertV*)sceGuGetMemory((sizeof(pgeVertV)<<1));
vertices[0].x = destrect->x;
vertices[0].y = destrect->y;
vertices[0].z = 0.0f;
vertices[1].x = destrect->x + destrect->w;
vertices[1].y = destrect->y + destrect->h;
vertices[1].z = 0.0f;
sceGuDisable(GU_TEXTURE_2D);
sceGuColor(color);
sceGuShadeModel(GU_FLAT);
sceGuDrawArray(GU_SPRITES, GU_VERTEX_32BITF|GU_TRANSFORM_2D, 2, 0, vertices);
sceGuShadeModel(GU_SMOOTH);
sceGuEnable(GU_TEXTURE_2D);
}
else
{
float x = destrect->x;
float y = destrect->y;
float width = destrect->w;
float height = destrect->h;
x += width * 0.5f;
y += height * 0.5f;
float c, s;
pgeMathSincos(angle, &s, &c);
width *= 0.5f;
height *= 0.5f;
float cw = c*width;
float sw = s*width;
float ch = c*height;
float sh = s*height;
pgeVertV* vertices = (pgeVertV*)sceGuGetMemory(5 * sizeof(pgeVertV));
vertices[0].x = x - cw + sh;
vertices[0].y = y - sw - ch;
vertices[0].z = 0;
vertices[1].x = x - cw - sh;
vertices[1].y = y - sw + ch;
vertices[1].z = 0;
vertices[2].x = x + cw - sh;
vertices[2].y = y + sw + ch;
vertices[2].z = 0;
vertices[3].x = x + cw + sh;
vertices[3].y = y + sw - ch;
vertices[3].z = 0;
sceGuDisable(GU_TEXTURE_2D);
sceGuColor(color);
sceGuShadeModel(GU_FLAT);
sceGuDrawArray(GU_TRIANGLE_FAN, GU_VERTEX_32BITF|GU_TRANSFORM_2D, 4, 0, vertices);
sceGuShadeModel(GU_SMOOTH);
sceGuEnable(GU_TEXTURE_2D);
}
}
void pgeGfxDrawRectGrad(pgeRect *destrect, unsigned int color1, unsigned int color2, unsigned int color3, unsigned int color4, float angle)
{
pgeGfxStartDrawing();
if(angle == 0.0f)
{
pgeVertCV* vertices = (pgeVertCV*)sceGuGetMemory((sizeof(pgeVertCV))<<2);
vertices[0].color = color1;
vertices[0].x = destrect->x;
vertices[0].y = destrect->y;
vertices[0].z = 0.0f;
vertices[1].color = color2;
vertices[1].x = destrect->x;
vertices[1].y = destrect->y + destrect->h;
vertices[1].z = 0.0f;
vertices[2].color = color3;
vertices[2].x = destrect->x + destrect->w;
vertices[2].y = destrect->y + destrect->h;
vertices[2].z = 0.0f;
vertices[3].color = color4;
vertices[3].x = destrect->x + destrect->w;
vertices[3].y = destrect->y;
vertices[3].z = 0.0f;
sceGuDisable(GU_TEXTURE_2D);
sceGuDrawArray(GU_TRIANGLE_FAN, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_2D, 4, 0, vertices);
sceGuEnable(GU_TEXTURE_2D);
}
else
{
float x = destrect->x;
float y = destrect->y;
float width = destrect->w;
float height = destrect->h;
x += width * 0.5f;
y += height * 0.5f;
float c, s;
pgeMathSincos(angle, &s, &c);
width *= 0.5f;
height *= 0.5f;
float cw = c*width;
float sw = s*width;
float ch = c*height;
float sh = s*height;
pgeVertCV* vertices = (pgeVertCV*)sceGuGetMemory((sizeof(pgeVertCV))<<2);
vertices[0].color = color1;
vertices[0].x = x - cw + sh;
vertices[0].y = y - sw - ch;
vertices[0].z = 0;
vertices[1].color = color2;
vertices[1].x = x - cw - sh;
vertices[1].y = y - sw + ch;
vertices[1].z = 0;
vertices[2].color = color3;
vertices[2].x = x + cw - sh;
vertices[2].y = y + sw + ch;
vertices[2].z = 0;
vertices[3].color = color4;
vertices[3].x = x + cw + sh;
vertices[3].y = y + sw - ch;
vertices[3].z = 0;
sceGuDisable(GU_TEXTURE_2D);
sceGuDrawArray(GU_TRIANGLE_FAN, GU_COLOR_8888|GU_VERTEX_32BITF|GU_TRANSFORM_2D, 4, 0, vertices);
sceGuEnable(GU_TEXTURE_2D);
}
}
void pgeGfxDrawTextureEasy(pgeTexture *texture, float x, float y, float angle, unsigned char alpha)
{
pgeRect sourcerect = {x, y, texture->width, texture->height};
pgeRect destrect = {0, 0, texture->width, texture->height};
pgeGfxDrawTexture(&sourcerect, &destrect, angle, alpha);
}
void pgeGfxDrawTexture(pgeRect *destrect, pgeRect *sourcerect, float angle, unsigned char alpha)
{
if(destrect->w <= 0 || destrect->h <= 0)
return;
float x, y, width, height;
float u0, v0, u1, v1;
x = destrect->x;
y = destrect->y;
width = destrect->w;
height = destrect->h;
u0 = sourcerect->x;
v0 = sourcerect->y;
u1 = sourcerect->x + sourcerect->w;
v1 = sourcerect->y + sourcerect->h;
pgeGfxStartDrawing();
if(alpha != 255)
{
sceGuTexFunc(GU_TFX_MODULATE, GU_TCC_RGBA);
sceGuColor(GU_RGBA(255, 255, 255, alpha));
}
if(angle == 0.0f)
{
if((pgeMathAbs(u1) - pgeMathAbs(u0)) < 64.0f)
{
pgeVertTV* vertices = (pgeVertTV*)sceGuGetMemory((sizeof(pgeVertTV))<<1);
vertices[0].u = u0;
vertices[0].v = v0;
vertices[0].x = x;
vertices[0].y = y;
vertices[0].z = 0;
vertices[1].u = u1;
vertices[1].v = v1;
vertices[1].x = x + width;
vertices[1].y = y + height;
vertices[1].z = 0;
sceGuDrawArray(GU_SPRITES, GU_TEXTURE_32BITF|GU_VERTEX_32BITF|GU_TRANSFORM_2D, 2, 0, vertices);
}
else
{
float start, end;
float curU = u0;
float curX = x;
float endX = x + width;
float slice = 64.0f;
float ustep = (u1 - u0)/width * slice;
if(ustep < 0.0f)
ustep = -ustep;
for(start = 0, end = width; start < end; start += slice)
{
pgeVertTV* vertices = (pgeVertTV*)sceGuGetMemory((sizeof(pgeVertTV))<<1);
float polyWidth = ((curX + slice) > endX) ? (endX - curX) : slice;
float sourceWidth = ((curU + ustep) > u1) ? (u1 - curU) : ustep;
vertices[0].u = curU;
vertices[0].v = v0;
vertices[0].x = curX;
vertices[0].y = y;
vertices[0].z = 0;
curU += sourceWidth;
curX += polyWidth;
vertices[1].u = curU;
vertices[1].v = v1;
vertices[1].x = curX;
vertices[1].y = (y + height);
vertices[1].z = 0;
sceGuDrawArray(GU_SPRITES, GU_TEXTURE_32BITF|GU_VERTEX_32BITF|GU_TRANSFORM_2D, 2, 0, vertices);