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Removed Nintendo DS support since nobody has volunteered to maintain it for over a year.

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This commit is contained in:
Sam Lantinga 2013-03-17 09:44:58 -07:00
parent 72befa7332
commit 3afbe992d5
53 changed files with 2 additions and 4350 deletions
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3
src/render/SDL_render.c
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@ -61,9 +61,6 @@ static const SDL_RenderDriver *render_drivers[] = {
#if SDL_VIDEO_RENDER_DIRECTFB
&DirectFB_RenderDriver,
#endif
#if SDL_VIDEO_RENDER_NDS
&NDS_RenderDriver,
#endif
#if SDL_VIDEO_RENDER_PSP
&PSP_RenderDriver,
#endif

3
src/render/SDL_sysrender.h
View file

@ -173,9 +173,6 @@ extern SDL_RenderDriver GLES_RenderDriver;
#if SDL_VIDEO_RENDER_DIRECTFB
extern SDL_RenderDriver DirectFB_RenderDriver;
#endif
#if SDL_VIDEO_RENDER_NDS
extern SDL_RenderDriver NDS_RenderDriver;
#endif
#if SDL_VIDEO_RENDER_PSP
extern SDL_RenderDriver PSP_RenderDriver;
#endif

315
src/render/nds/SDL_libgl2D.c
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@ -1,315 +0,0 @@
/*
* Note: The Nintendo DS port to SDL uses excerpts from the libGL2D,
* with permission of the original author. The following is mostly his
* code/comments.
*
*
* Easy GL2D
*
* Relminator 2010
* Richard Eric M. Lope BSN RN
*
* http://rel.betterwebber.com
*
* A very small and simple DS rendering lib using the 3d core to render 2D stuff
*/
#include "SDL_config.h"
#if SDL_VIDEO_RENDER_NDS
#include "SDL_libgl2D.h"
/*
* Our static global variable used for Depth values since we cannot
* disable depth testing in the DS hardware This value is incremented
* for every draw call. */
v16 g_depth;
int gCurrentTexture;
/*
* !!! PRIVATE !!! Set orthographic projection at 1:1 correspondence
* to screen coords glOrtho expects f32 values but if we use the
* standard f32 values, we need to rescale either every vert or the
* modelview matrix by the same amount to make it work. That's gonna
* give us lots of overflows and headaches. So we "scale down" and
* use an all integer value.
*/
void SetOrtho(void)
{
glMatrixMode(GL_PROJECTION); // set matrixmode to projection
glLoadIdentity(); // reset
glOrthof32(0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, -1 << 12, 1 << 12); // downscale projection matrix
}
/*
* Initializes GL in 2D mode Also initializes GL in 3d mode so that we
* could combine 2D and 3D later Almost a direct copy from the DS
* example files
*/
void glScreen2D(void)
{
// initialize gl
glInit();
// enable textures
glEnable(GL_TEXTURE_2D);
// enable antialiasing
glEnable(GL_ANTIALIAS);
// setup the rear plane
glClearColor(0, 0, 0, 31); // BG must be opaque for AA to work
glClearPolyID(63); // BG must have a unique polygon ID for AA to work
glClearDepth(GL_MAX_DEPTH);
// this should work the same as the normal gl call
glViewport(0,0,255,191);
// any floating point gl call is being converted to fixed prior to being implemented
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(70, 256.0 / 192.0, 1, 200);
gluLookAt( 0.0, 0.0, 1.0, //camera possition
0.0, 0.0, 0.0, //look at
0.0, 1.0, 0.0); //up
glMaterialf(GL_AMBIENT, RGB15(31,31,31));
glMaterialf(GL_DIFFUSE, RGB15(31,31,31));
glMaterialf(GL_SPECULAR, BIT(15) | RGB15(31,31,31));
glMaterialf(GL_EMISSION, RGB15(31,31,31));
// ds uses a table for shinyness..this generates a half-ass one
glMaterialShinyness();
// not a real gl function and will likely change
glPolyFmt(POLY_ALPHA(31) | POLY_CULL_BACK);
}
/*
* Sets up OpenGL for 2d rendering Call this before drawing any of
* GL2D's drawing or sprite functions.
*/
void glBegin2D(void)
{
// save 3d perpective projection matrix
glMatrixMode(GL_PROJECTION);
glPushMatrix();
// save 3d modelview matrix for safety
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
// what?!! No glDisable(GL_DEPTH_TEST)?!!!!!!
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
glDisable(GL_ANTIALIAS); // disable AA
glDisable(GL_OUTLINE); // disable edge-marking
glColor(0x7FFF); // max color
glPolyFmt(POLY_ALPHA(31) | POLY_CULL_NONE); // no culling
SetOrtho();
glMatrixMode(GL_TEXTURE); // reset texture matrix just in case we did some funky stuff with it
glLoadIdentity();
glMatrixMode(GL_MODELVIEW); // reset modelview matrix. No need to scale up by << 12
glLoadIdentity();
gCurrentTexture = 0; // set current texture to 0
g_depth = 0; // set depth to 0. We need this var since we cannot disable depth testing
}
/*
* Issue this after drawing 2d so that we don't mess the matrix stack.
* The complement of glBegin2D.
*/
void glEnd2D(void)
{
// restore 3d matrices and set current matrix to modelview
glMatrixMode(GL_PROJECTION);
glPopMatrix(1);
glMatrixMode(GL_MODELVIEW);
glPopMatrix(1);
}
/*
* Draws a pixel
* Parameters:
* x,y -> First coordinate of the line
* color -> RGB15/ARGB16 color
*/
void glPutPixel(int x, int y, int color)
{
glBindTexture(0, 0);
glColor(color);
glBegin(GL_TRIANGLES);
gxVertex3i(x, y, g_depth);
gxVertex2i(x, y);
gxVertex2i(x, y);
glEnd();
glColor(0x7FFF);
g_depth++;
gCurrentTexture = 0;
}
/*
* Draws a line
* Parameters:
* x1,y1 -> First coordinate of the line
* x2,y2 -> Second coordinate of the line
* color -> RGB15/ARGB16 color
*/
void glLine(int x1, int y1, int x2, int y2, int color)
{
x2++;
y2++;
glBindTexture(0, 0);
glColor(color);
glBegin(GL_TRIANGLES);
gxVertex3i(x1, y1, g_depth);
gxVertex2i(x2, y2);
gxVertex2i(x2, y2);
glEnd();
glColor(0x7FFF);
g_depth++;
gCurrentTexture = 0;
}
/*
* Draws a Filled Box
* Parameters:
* x1,y1 -> Top-left corner of the box
* x2,y2 -> Bottom-Right corner of the box
* color -> RGB15/ARGB16 color
*/
void glBoxFilled(int x1, int y1, int x2, int y2, int color)
{
x2++;
y2++;
glBindTexture(0, 0);
glColor(color);
glBegin(GL_QUADS);
gxVertex3i(x1, y1, g_depth); // use 3i for first vertex so that we increment HW depth
gxVertex2i(x1, y2); // no need for 3 vertices as 2i would share last depth call
gxVertex2i(x2, y2);
gxVertex2i(x2, y1);
glEnd();
glColor(0x7FFF);
g_depth++;
gCurrentTexture = 0;
}
/*
*
* Create a tile.
* Very rigid and prone to human error.
*
* Parameters:
* *sprite -> pointer to a glImage
* texture_width -> width/height of the texture;
* texture_height -> valid sizes are enumerated in GL_TEXTURE_TYPE_ENUM (see glTexImage2d)
* sprite_width
* sprite_height -> width/height of the picture in the texture.
* type -> The format of the texture (see glTexImage2d)
* param -> parameters for the texture (see glTexImage2d)
*/
int glLoadTile(glImage *sprite,
int texture_width,
int texture_height,
int sprite_width,
int sprite_height,
GL_TEXTURE_TYPE_ENUM type,
int param,
int pallette_width,
const u16 *palette,
const uint8 *texture)
{
int textureID;
glGenTextures(1, &textureID);
glBindTexture(0, textureID);
glTexImage2D(0, 0, type, texture_width, texture_height, 0, param, texture);
glColorTableEXT(0, 0, pallette_width, 0, 0, palette);
sprite->width = sprite_width;
sprite->height = sprite_height;
sprite->textureID = textureID;
return textureID;
}
/*
* I made this since the scale wrappers are either the vectorized mode
* or does not permit you to scale only the axis you want to
* scale. Needed for sprite scaling.
*/
static inline void gxScalef32(s32 x, s32 y, s32 z)
{
MATRIX_SCALE = x;
MATRIX_SCALE = y;
MATRIX_SCALE = z;
}
/*
* I this made for future naming conflicts.
*/
static inline void gxTranslate3f32(int32 x, int32 y, int32 z)
{
MATRIX_TRANSLATE = x;
MATRIX_TRANSLATE = y;
MATRIX_TRANSLATE = z;
}
/*
* Draws an axis exclusive scaled sprite
* Parameters:
* x -> x position of the sprite
* y -> y position of the sprite
* scaleX -> 20.12 FP X axis scale value (1 << 12 is normal)
* scaleY -> 20.12 FP Y axis scale value (1 << 12 is normal)
* flipmode -> mode for flipping (see GL_FLIP_MODE enum)
* *spr -> pointer to a glImage
*/
void glSpriteScaleXY(int x, int y, s32 scaleX, s32 scaleY, int flipmode, const glImage *spr)
{
const int x1 = 0;
const int y1 = 0;
const int x2 = spr->width;
const int y2 = spr->height;
const int u1 = ((flipmode & GL_FLIP_H) ? spr->width-1 : 0);
const int u2 = ((flipmode & GL_FLIP_H) ? 0 : spr->width-1);
const int v1 = ((flipmode & GL_FLIP_V) ? spr->height-1 : 0);
const int v2 = ((flipmode & GL_FLIP_V) ? 0 : spr->height-1);
if (spr->textureID != gCurrentTexture)
{
glBindTexture(GL_TEXTURE_2D, spr->textureID);
gCurrentTexture = spr->textureID;
}
glPushMatrix();
gxTranslate3f32(x, y, 0);
gxScalef32(scaleX, scaleY, 1 << 12);
glBegin(GL_QUADS);
gxTexcoord2i(u1, v1); gxVertex3i(x1, y1, g_depth);
gxTexcoord2i(u1, v2); gxVertex2i(x1, y2);
gxTexcoord2i(u2, v2); gxVertex2i(x2, y2);
gxTexcoord2i(u2, v1); gxVertex2i(x2, y1);
glEnd();
glPopMatrix(1);
g_depth++;
}
#endif /* SDL_VIDEO_RENDER_NDS */

154
src/render/nds/SDL_libgl2D.h
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@ -1,154 +0,0 @@
/*
* Note: The Nintendo DS port to SDL uses excerpts from the libGL2D,
* with permission of the original author. The following is mostly his
* code/comments.
*
*
* Easy GL2D
*
* Relminator 2010
* Richard Eric M. Lope BSN RN
*
* http://rel.betterwebber.com
*
* A very small and simple DS rendering lib using the 3d core to render 2D stuff
*/
#include "SDL_config.h"
#if SDL_VIDEO_RENDER_NDS
#include <nds/arm9/videoGL.h>
/* LibGL extension(s) */
static inline void gxTexcoord2i(t16 u, t16 v)
{
GFX_TEX_COORD = (v << 20) | ((u << 4) & 0xFFFF);
}
static inline void gxVertex3i(v16 x, v16 y, v16 z)
{
GFX_VERTEX16 = (y << 16) | (x & 0xFFFF);
GFX_VERTEX16 = ((uint32)(uint16)z);
}
static inline void gxVertex2i(v16 x, v16 y)
{
GFX_VERTEX_XY = (y << 16) | (x & 0xFFFF);
}
/*
* Enums selecting flipping mode.
*
* These enums are bits for flipping the sprites.
* You can "|" (or) GL_FLIP_V and GL_FLIP_H to flip
* both ways.
*/
typedef enum
{
GL_FLIP_NONE = (1 << 0), /* No flipping */
GL_FLIP_V = (1 << 1), /* Sprite is rendered vertically flipped */
GL_FLIP_H = (1 << 2), /* Sprite is rendered horizontally flipped */
} GL_FLIP_MODE;
/* Struct for out GL-Based Images. */
typedef struct
{
int width; /* Width of the Sprite */
int height; /* Height of the Sprite */
int textureID; /* Texture handle (used in glDeleteTextures())
The texture handle in VRAM (returned by glGenTextures())
ie. This references the actual texture stored in VRAM. */
} glImage;
extern v16 g_depth;
extern int gCurrentTexture;
/*
* Draws an Axis Exclusive Scaled Sprite
* Parameters:
* x X position of the sprite.
* y Y position of the sprite.
* scaleX 20.12 fixed-point X-Axis scale value (1 << 12 is normal).
* scaleY 20.12 fixed-point Y-Axis scale value (1 << 12 is normal).
* flipmode mode for flipping (see GL_FLIP_MODE enum).
* *spr pointer to a glImage.
*/
void glSpriteScaleXY(int x, int y, s32 scaleX, s32 scaleY, int flipmode, const glImage *spr);
/* Initializes our Tileset (like glInitSpriteset()) but without the use of Texture Packer auto-generated files.
* Can only be used when tiles in a tilset are of the same dimensions.
* Parameters:
* *sprite Pointer to an array of glImage.
* tile_wid Width of each tile in the texture.
* tile_hei Height of each tile in the texture.
* bmp_wid Width of of the texture or tileset.
* bmp_hei height of of the texture or tileset.
* type The format of the texture (see glTexImage2d()).
* sizeX The horizontal size of the texture; valid sizes are enumerated in GL_TEXTURE_TYPE_ENUM (see glTexImage2d()).
* sizeY The vertical size of the texture; valid sizes are enumerated in GL_TEXTURE_TYPE_ENUM (see glTexImage2d()).
* param parameters for the texture (see glTexImage2d()).
* pallette_width Length of the palette. Valid values are <b>4, 16, 32, 256</b> (if <b>0</b>, then palette is removed from currently bound texture).
* *palette Pointer to the palette data to load (if NULL, then palette is removed from currently bound texture).
* *texture Pointer to the texture data to load.
*/
int glLoadTile(glImage *sprite,
int texture_width,
int texture_height,
int sprite_width,
int sprite_height,
GL_TEXTURE_TYPE_ENUM type,
int param,
int pallette_width,
const u16 *palette,
const uint8 *texture);
/* Initializes GL in 2D mode */
void glScreen2D(void);
/*
* Sets up OpenGL for 2d rendering.
*
* Call this before drawing any of GL2D's drawing or sprite functions.
*/
void glBegin2D(void);
/*
* Issue this after drawing 2d so that we don't mess the matrix stack.
*
* The complement of glBegin2D().
*/
void glEnd2D(void);
/*
* Draws a Pixel
* x X position of the pixel.
* y Y position of the pixel.
* color RGB15/ARGB16 color.
*/
void glPutPixel(int x, int y, int color);
/*
* Draws a Line
* x1,y1 Top-Left coordinate of the line.
* x2,y2 Bottom-Right coordinate of the line.
* color RGB15/ARGB16 color.
*/
void glLine(int x1, int y1, int x2, int y2, int color);
/*
* Draws a Box
* x1,y1 Top-Left coordinate of the box.
* x2,y2 Bottom-Right coordinate of the box.
* color RGB15/ARGB16 color.
*/
void glBox(int x1, int y1, int x2, int y2, int color);
/*
* Draws a Filled Box
* x1,y1 Top-Left coordinate of the box.
* x2,y2 Bottom-Right coordinate of the box.
* color RGB15/ARGB16 color.
*/
void glBoxFilled(int x1, int y1, int x2, int y2, int color);
#endif /* SDL_VIDEO_RENDER_NDS */

418
src/render/nds/SDL_ndsrender.c
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@ -1,418 +0,0 @@
/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#if SDL_VIDEO_RENDER_NDS
#include <stdio.h>
#include <stdlib.h>
#include <nds.h>
#include "SDL_libgl2D.h"
#include "SDL_video.h"
#include "../../video/SDL_sysvideo.h"
#include "SDL_render.h"
#include "../SDL_sysrender.h"
#include "SDL_log.h"
/* Draws a partial sprite. Based on glSprite. */
static void glSpritePartial(const SDL_Rect * srcrect, int x, int y, int flipmode, const glImage *spr)
{
int x1 = x;
int y1 = y;
int x2 = x + srcrect->w;
int y2 = y + srcrect->h;
int u1 = srcrect->x + ((flipmode & GL_FLIP_H) ? spr->width-1 : 0);
int u2 = srcrect->x + ((flipmode & GL_FLIP_H) ? 0 : srcrect->h);
int v1 = srcrect->y + ((flipmode & GL_FLIP_V) ? spr->height-1 : 0);
int v2 = srcrect->y + ((flipmode & GL_FLIP_V) ? 0 : srcrect->h);
if (spr->textureID != gCurrentTexture) {
glBindTexture(GL_TEXTURE_2D, spr->textureID);
gCurrentTexture = spr->textureID;
}
glBegin(GL_QUADS);
gxTexcoord2i(u1, v1); gxVertex3i(x1, y1, g_depth);
gxTexcoord2i(u1, v2); gxVertex2i(x1, y2);
gxTexcoord2i(u2, v2); gxVertex2i(x2, y2);
gxTexcoord2i(u2, v1); gxVertex2i(x2, y1);
glEnd();
g_depth++;
}
/* SDL NDS renderer implementation */
extern SDL_RenderDriver NDS_RenderDriver;
typedef struct
{
/* Whether current 3D engine is on the main or sub screen. */
int is_sub;
} NDS_RenderData;
typedef struct
{
glImage image[1];
} NDS_TextureData;
static int NDS_UpdateViewport(SDL_Renderer *renderer)
{
/* Nothing to do. */
return 0;
}
static int
NDS_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_Rect * dstrect)
{
NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
NDS_TextureData *txdat = (NDS_TextureData *) texture->driverdata;
int dest_y;
if (data->is_sub) {
dest_y = dstrect->y;
} else {
dest_y = dstrect->y-SCREEN_HEIGHT;
}
if (srcrect->w == dstrect->w && srcrect->h == dstrect->h) {
/* No scaling */
glSpritePartial(srcrect, dstrect->x, dest_y, GL_FLIP_NONE, txdat->image);
} else {
/* Convert the scaling proportion into a 20.12 value. */
s32 scale_w = divf32(dstrect->w << 12, texture->w << 12);
s32 scale_h = divf32(dstrect->h << 12, texture->h << 12);
glSpriteScaleXY(dstrect->x, dest_y, scale_w, scale_h, GL_FLIP_NONE, txdat->image);
}
return 0;
}
static int NDS_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture)
{
NDS_TextureData *txdat = NULL;
int i;
SDL_Log("NDS_CreateTexture: NDS_CreateTexture.\n");
/* Sanity checks. */
for (i=0; i<NDS_RenderDriver.info.num_texture_formats; i++) {
if (texture->format == NDS_RenderDriver.info.texture_formats[i])
break;
}
if (i == NDS_RenderDriver.info.num_texture_formats) {
SDL_SetError("Unsupported texture format (%x)", texture->format);
return -1;
}
if (texture->w > NDS_RenderDriver.info.max_texture_width) {
SDL_SetError("Texture too large (%d)", texture->w);
return -1;
}
if (texture->h > NDS_RenderDriver.info.max_texture_height) {
SDL_SetError("Texture too tall (%d)", texture->h);
return -1;
}
texture->driverdata = SDL_calloc(1, sizeof(NDS_TextureData));
txdat = (NDS_TextureData *) texture->driverdata;
if (!txdat) {
SDL_OutOfMemory();
return -1;
}
return 0;
}
static void
NDS_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture)
{
NDS_TextureData *txdat = texture->driverdata;
/* free anything else allocated for texture */
SDL_free(txdat);
}
/* size is no more than 512. */
static int get_gltexture_size(unsigned int size)
{
if (size > 256)
return TEXTURE_SIZE_512;
else if (size > 128)
return TEXTURE_SIZE_256;
else if (size > 64)
return TEXTURE_SIZE_128;
else if (size > 32)
return TEXTURE_SIZE_64;
else if (size > 16)
return TEXTURE_SIZE_32;
else if (size > 8)
return TEXTURE_SIZE_16;
else
return TEXTURE_SIZE_8;
}
static int NDS_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, const void *pixels, int pitch)
{
NDS_TextureData *txdat = (NDS_TextureData *) texture->driverdata;
char *new_pixels = NULL;
const int gl_w = get_gltexture_size(rect->w);
const int gl_h = get_gltexture_size(rect->h);
const int w = 1 << (3+gl_w); /* Texture sizes must be a power of 2. */
const int h = 1 << (3+gl_h); /* Texture sizes must be a power of 2. */
if (w != rect->w || h != rect->h) {
/* Allocate a temporary surface and copy pixels into it while
* enlarging the pitch. */
const char *src;
char *dst;
int new_pitch = 2 * w;
int i;
new_pixels = malloc(2 * w * h);
if (!new_pixels)
return SDL_ENOMEM;
src = pixels;
dst = new_pixels;
for (i=0; i<rect->h; i++) {
memcpy(dst, src, pitch);
src += pitch;
dst += new_pitch;
}
}
glLoadTile(txdat->image,
gl_w, gl_h,
rect->w, rect->h,
texture->format == SDL_PIXELFORMAT_ABGR1555 ? GL_RGBA : GL_RGB,
TEXGEN_OFF, 0, NULL,
new_pixels? new_pixels : pixels);
if (new_pixels)
free(new_pixels);
return 0;
}
static int NDS_LockTexture(SDL_Renderer *renderer, SDL_Texture *texture,
const SDL_Rect *rect, void **pixels, int *pitch)
{
SDL_Log("enter %s (todo)\n", __func__);
return 0;
}
static void NDS_UnlockTexture(SDL_Renderer *renderer, SDL_Texture *texture)
{
SDL_Log("enter %s\n", __func__);
/* stub! */
}
static int NDS_RenderClear(SDL_Renderer *renderer)
{
glClearColor(renderer->r >> 3,
renderer->g >> 3,
renderer->b >> 3,
renderer->a >> 3);
return 0;
}
static void NDS_RenderPresent(SDL_Renderer * renderer)
{
NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
glEnd2D();
glFlush(0);
swiWaitForVBlank();
/* wait for capture unit to be ready */
while(REG_DISPCAPCNT & DCAP_ENABLE);
/* 3D engine can only work on one screen at a time. */
data->is_sub = !data->is_sub;
if (data->is_sub) {
lcdMainOnBottom();
vramSetBankC(VRAM_C_LCD);
vramSetBankD(VRAM_D_SUB_SPRITE);
REG_DISPCAPCNT = DCAP_BANK(2) | DCAP_ENABLE | DCAP_SIZE(3);
} else {
lcdMainOnTop();
vramSetBankD(VRAM_D_LCD);
vramSetBankC(VRAM_C_SUB_BG);
REG_DISPCAPCNT = DCAP_BANK(3) | DCAP_ENABLE | DCAP_SIZE(3);
}
glBegin2D();
}
static int NDS_RenderDrawPoints(SDL_Renderer *renderer, const SDL_Point *points,
int count)
{
NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
int i;
int color = RGB15(renderer->r >> 3,
renderer->g >> 3,
renderer->b >> 3);
for (i=0; i < count; i++) {
if (data->is_sub) {
glPutPixel(points[i].x, points[i].y, color);
} else {
glPutPixel(points[i].x, points[i].y - SCREEN_HEIGHT, color);
}
}
return 0;
}
static int NDS_RenderDrawLines(SDL_Renderer *renderer, const SDL_Point *points,
int count)
{
NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
int i;
int color = RGB15(renderer->r >> 3,
renderer->g >> 3,
renderer->b >> 3);
for (i=0; i < count-1; i++) {
if (data->is_sub) {
glLine(points[i].x, points[i].y, points[i+1].x, points[i+1].y, color);
} else {
glLine(points[i].x, points[i].y - SCREEN_HEIGHT,
points[i+1].x, points[i+1].y - SCREEN_HEIGHT, color);
}
}
return 0;
}
static int NDS_RenderFillRects(SDL_Renderer *renderer, const SDL_Rect *rects,
int count)
{
NDS_RenderData *data = (NDS_RenderData *) renderer->driverdata;
int i;
int color = RGB15(renderer->r >> 3,
renderer->g >> 3,
renderer->b >> 3);
for (i=0; i<count; i++) {
if (data->is_sub) {
glBoxFilled(rects[i].x, rects[i].y,
rects[i].x + rects[i].w,
rects[i].y + rects[i].h, color);
} else {
glBoxFilled(rects[i].x, rects[i].y - SCREEN_HEIGHT,
rects[i].x + rects[i].w,
rects[i].y + rects[i].h - SCREEN_HEIGHT,
color);
}
}
return 0;
}
static SDL_Renderer *
NDS_CreateRenderer(SDL_Window * window, Uint32 flags)
{
SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
SDL_DisplayMode *displayMode = &display->current_mode;
SDL_Renderer *renderer;
NDS_RenderData *data;
int bpp;
Uint32 Rmask, Gmask, Bmask, Amask;
if (displayMode->format != SDL_PIXELFORMAT_ABGR1555) {
SDL_SetError("Unsupported pixel format (%x)", displayMode->format);
return NULL;
}
if (!SDL_PixelFormatEnumToMasks(displayMode->format, &bpp,
&Rmask, &Gmask, &Bmask, &Amask)) {
SDL_SetError("Unknown display format");
return NULL;
}
renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
if (!renderer) {
SDL_OutOfMemory();
return NULL;
}
data = (NDS_RenderData *) SDL_calloc(1, sizeof(*data));
if (!data) {
SDL_free(renderer);
SDL_OutOfMemory();
return NULL;
}
renderer->info = NDS_RenderDriver.info;
renderer->info.flags = SDL_RENDERER_ACCELERATED;
renderer->CreateTexture = NDS_CreateTexture;
renderer->UpdateTexture = NDS_UpdateTexture;
renderer->LockTexture = NDS_LockTexture;
renderer->UnlockTexture = NDS_UnlockTexture;
renderer->UpdateViewport = NDS_UpdateViewport;
renderer->RenderClear = NDS_RenderClear;
renderer->RenderDrawPoints = NDS_RenderDrawPoints;
renderer->RenderDrawLines = NDS_RenderDrawLines;
renderer->RenderFillRects = NDS_RenderFillRects;
renderer->RenderCopy = NDS_RenderCopy;
/* renderer->RenderReadPixels = NDS_RenderReadPixels; - todo ? */
renderer->RenderPresent = NDS_RenderPresent;
renderer->DestroyTexture = NDS_DestroyTexture;
/* renderer->DestroyRenderer = NDS_DestroyRenderer; - todo ? */
renderer->driverdata = data;
return renderer;
}
SDL_RenderDriver NDS_RenderDriver = {
.CreateRenderer = NDS_CreateRenderer,
.info = {
.name = "nds",
.flags = SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC,
.num_texture_formats = 2,
.texture_formats = { [0] = SDL_PIXELFORMAT_ABGR1555,
[1] = SDL_PIXELFORMAT_BGR555,
},
.max_texture_width = 512,
.max_texture_height = 512,
}
};
#endif /* SDL_VIDEO_RENDER_NDS */
/* vi: set ts=4 sw=4 expandtab: */