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Texture update functions.

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This commit is contained in:
jussi
2022-05-25 23:17:13 +03:00
parent 06f9940682
commit 3aec701f80
5 changed files with 339 additions and 200 deletions
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15
src/lua_core.c
View File

@@ -651,18 +651,13 @@ void luaRegister() {
lua_register( L, "RL_GetCollisionRec", lshapesGetCollisionRec );
/* Textures. */
/* File. */
/* Image Loading. */
lua_register( L, "RL_LoadImage", ltexturesLoadImage );
lua_register( L, "RL_LoadImageFromTexture", ltexturesLoadImageFromTexture );
lua_register( L, "RL_LoadImageFromScreen", ltexturesLoadImageFromScreen );
lua_register( L, "RL_UnloadImage", ltexturesUnloadImage );
lua_register( L, "RL_ExportImage", ltexturesExportImage );
lua_register( L, "RL_ExportImageAsCode", ltexturesExportImageAsCode );
lua_register( L, "RL_LoadTexture", ltexturesLoadTexture );
lua_register( L, "RL_LoadTextureFromImage", ltexturesLoadTextureFromImage );
lua_register( L, "RL_UnloadTexture", ltexturesUnloadTexture );
lua_register( L, "RL_LoadRenderTexture", ltexturesLoadRenderTexture );
lua_register( L, "RL_UnloadRenderTexture", ltexturesUnloadRenderTexture );
/* Image Generation. */
lua_register( L, "RL_GenImageColor", ltexturesGenImageColor );
lua_register( L, "RL_GenImageGradientV", ltexturesGenImageGradientV );
@@ -714,6 +709,14 @@ void luaRegister() {
lua_register( L, "RL_GetImageSize", ltexturesGetImageSize );
lua_register( L, "RL_GetImageMipmaps", ltexturesGetImageMipmaps );
lua_register( L, "RL_GetImageFormat", ltexturesGetImageFormat );
/* Texture Loading. */
lua_register( L, "RL_LoadTexture", ltexturesLoadTexture );
lua_register( L, "RL_LoadTextureFromImage", ltexturesLoadTextureFromImage );
lua_register( L, "RL_UnloadTexture", ltexturesUnloadTexture );
lua_register( L, "RL_LoadRenderTexture", ltexturesLoadRenderTexture );
lua_register( L, "RL_UnloadRenderTexture", ltexturesUnloadRenderTexture );
lua_register( L, "RL_UpdateTexture", ltexturesUpdateTexture );
lua_register( L, "RL_UpdateTextureRec", ltexturesUpdateTextureRec );
/* Texture Drawing. */
lua_register( L, "RL_DrawTexture", ltexturesDrawTexture );
lua_register( L, "RL_DrawTextureRec", ltexturesDrawTextureRec );

391
src/textures.c
View File

@@ -132,7 +132,7 @@ Texture2D* texturesGetSourceTexture( size_t index ) {
}
/*
## Textures - Load
## Textures - Image Loading
*/
/*
@@ -282,144 +282,6 @@ int ltexturesExportImageAsCode( lua_State *L ) {
return 1;
}
/*
> texture = RL_LoadTexture( string fileName )
Load texture from file into GPU memory ( VRAM )
- Failure return -1
- Success return int
*/
int ltexturesLoadTexture( lua_State *L ) {
if ( !lua_isstring( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_LoadTexture( string fileName )" );
lua_pushinteger( L, -1 );
return 1;
}
if ( FileExists( lua_tostring( L, -1 ) ) ) {
int i = newTexture();
*state->textures[i] = LoadTexture( lua_tostring( L, -1 ) );
lua_pushinteger( L, i );
return 1;
}
else {
lua_pushinteger( L, -1 );
return 1;
}
}
/*
> texture = RL_LoadTextureFromImage( Image image )
Load texture from image data
- Failure return -1
- Success return int
*/
int ltexturesLoadTextureFromImage( lua_State *L ) {
if ( !lua_isnumber( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_LoadTextureFromImage( Image image )" );
lua_pushinteger( L, -1 );
return 1;
}
size_t imageId = lua_tointeger( L, -1 );
if ( !validImage( imageId ) ) {
lua_pushboolean( L, false );
return 1;
}
int i = newTexture();
*state->textures[i] = LoadTextureFromImage( *state->images[ imageId ] );
lua_pushinteger( L, i );
return 1;
}
/*
> success = RL_UnloadTexture( Texture2D texture )
Unload texture from GPU memory ( VRAM )
- Failure return false
- Success return true
*/
int ltexturesUnloadTexture( lua_State *L ) {
if ( !lua_isnumber( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_UnloadTexture( Texture2D texture )" );
lua_pushboolean( L, false );
return 1;
}
size_t id = lua_tointeger( L, -1 );
if ( !validTexture( id ) ) {
lua_pushboolean( L, false );
return 1;
}
UnloadTexture( *state->textures[ id ] );
state->textures[ id ] = NULL;
lua_pushboolean( L, true );
return 1;
}
/*
> renderTexture = RL_LoadRenderTexture( Vector2 size )
Load texture for rendering ( framebuffer )
- Failure return -1
- Success return int
*/
int ltexturesLoadRenderTexture( lua_State *L ) {
if ( !lua_istable( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_LoadRenderTexture( Vector2 size )" );
lua_pushinteger( L, -1 );
return 1;
}
Vector2 size = uluaGetVector2( L );
int i = 0;
for ( i = 0; i < state->renderTextureCount; i++ ) {
if ( state->renderTextures[i] == NULL ) {
break;
}
}
state->renderTextures[i] = malloc( sizeof( RenderTexture2D ) );
*state->renderTextures[i] = LoadRenderTexture( (int)size.x, (int)size.y );
lua_pushinteger( L, i );
checkRenderTextureRealloc( i );
return 1;
}
/*
> success = RL_UnloadRenderTexture( RenderTexture2D target )
Unload render texture from GPU memory ( VRAM )
- Failure return false
- Success return true
*/
int ltexturesUnloadRenderTexture( lua_State *L ) {
if ( !lua_isnumber( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_UnloadRenderTexture( RenderTexture2D target )" );
lua_pushboolean( L, false );
return 1;
}
size_t id = lua_tointeger( L, -1 );
if ( !validRenderTexture( id ) ) {
lua_pushboolean( L, false );
return 1;
}
UnloadRenderTexture( *state->renderTextures[ id ] );
state->renderTextures[ id ] = NULL;
lua_pushboolean( L, true );
return 1;
}
/*
## Textures - Image Generation
*/
@@ -1788,6 +1650,256 @@ int ltexturesGetImageFormat( lua_State *L ) {
return 1;
}
/*
## Textures - Texture Loading
*/
/*
> texture = RL_LoadTexture( string fileName )
Load texture from file into GPU memory ( VRAM )
- Failure return -1
- Success return int
*/
int ltexturesLoadTexture( lua_State *L ) {
if ( !lua_isstring( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_LoadTexture( string fileName )" );
lua_pushinteger( L, -1 );
return 1;
}
if ( FileExists( lua_tostring( L, -1 ) ) ) {
int i = newTexture();
*state->textures[i] = LoadTexture( lua_tostring( L, -1 ) );
lua_pushinteger( L, i );
return 1;
}
else {
lua_pushinteger( L, -1 );
return 1;
}
}
/*
> texture = RL_LoadTextureFromImage( Image image )
Load texture from image data
- Failure return -1
- Success return int
*/
int ltexturesLoadTextureFromImage( lua_State *L ) {
if ( !lua_isnumber( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_LoadTextureFromImage( Image image )" );
lua_pushinteger( L, -1 );
return 1;
}
size_t imageId = lua_tointeger( L, -1 );
if ( !validImage( imageId ) ) {
lua_pushboolean( L, false );
return 1;
}
int i = newTexture();
*state->textures[i] = LoadTextureFromImage( *state->images[ imageId ] );
lua_pushinteger( L, i );
return 1;
}
/*
> success = RL_UnloadTexture( Texture2D texture )
Unload texture from GPU memory ( VRAM )
- Failure return false
- Success return true
*/
int ltexturesUnloadTexture( lua_State *L ) {
if ( !lua_isnumber( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_UnloadTexture( Texture2D texture )" );
lua_pushboolean( L, false );
return 1;
}
size_t id = lua_tointeger( L, -1 );
if ( !validTexture( id ) ) {
lua_pushboolean( L, false );
return 1;
}
UnloadTexture( *state->textures[ id ] );
state->textures[ id ] = NULL;
lua_pushboolean( L, true );
return 1;
}
/*
> renderTexture = RL_LoadRenderTexture( Vector2 size )
Load texture for rendering ( framebuffer )
- Failure return -1
- Success return int
*/
int ltexturesLoadRenderTexture( lua_State *L ) {
if ( !lua_istable( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_LoadRenderTexture( Vector2 size )" );
lua_pushinteger( L, -1 );
return 1;
}
Vector2 size = uluaGetVector2( L );
int i = 0;
for ( i = 0; i < state->renderTextureCount; i++ ) {
if ( state->renderTextures[i] == NULL ) {
break;
}
}
state->renderTextures[i] = malloc( sizeof( RenderTexture2D ) );
*state->renderTextures[i] = LoadRenderTexture( (int)size.x, (int)size.y );
lua_pushinteger( L, i );
checkRenderTextureRealloc( i );
return 1;
}
/*
> success = RL_UnloadRenderTexture( RenderTexture2D target )
Unload render texture from GPU memory ( VRAM )
- Failure return false
- Success return true
*/
int ltexturesUnloadRenderTexture( lua_State *L ) {
if ( !lua_isnumber( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_UnloadRenderTexture( RenderTexture2D target )" );
lua_pushboolean( L, false );
return 1;
}
size_t id = lua_tointeger( L, -1 );
if ( !validRenderTexture( id ) ) {
lua_pushboolean( L, false );
return 1;
}
UnloadRenderTexture( *state->renderTextures[ id ] );
state->renderTextures[ id ] = NULL;
lua_pushboolean( L, true );
return 1;
}
/*
> success = RL_UpdateTexture( Texture2D texture, int pixels{ {} } )
Update GPU texture with new data
NOTE! Should be TEXTURE_SOURCE_TEXTURE. Pixel should be in format { { 255, 255, 255, 255 }... } depending on the pixel format
- Failure return false
- Success return true
*/
int ltexturesUpdateTexture( lua_State *L ) {
if ( !lua_isnumber( L, -2 ) || !lua_istable( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_UpdateTexture( Texture2D texture, int pixels{ {} } )" );
lua_pushboolean( L, false );
return 1;
}
size_t texId = lua_tointeger( L, -2 );
if ( !validTexture( texId ) ) {
lua_pushboolean( L, false );
return 1;
}
size_t len = uluaGetTableLen( L );
unsigned char *pixels = malloc( len * 4 * sizeof( unsigned char ) );
int t = lua_gettop( L );
int i = 0;
lua_pushnil( L );
while ( lua_next( L, t ) != 0 ) {
size_t colLen = uluaGetTableLen( L );
int t2 = lua_gettop( L );
int j = 0;
lua_pushnil( L );
while ( lua_next( L, t2 ) != 0 ) {
*( pixels + ( i * colLen ) + j ) = lua_tointeger( L, -1 );
j++;
lua_pop( L, 1 );
}
i++;
lua_pop( L, 1 );
}
UpdateTexture( *state->textures[ texId ], pixels );
lua_pushboolean( L, true );
free( pixels );
return 1;
}
/*
> success = RL_UpdateTextureRec( Texture2D texture, Rectangle rec, int pixels{ {} } )
Update GPU texture rectangle with new data
NOTE! Should be TEXTURE_SOURCE_TEXTURE. Pixel should be in format { { 255, 255, 255, 255 }... } depending on the pixel format
- Failure return false
- Success return true
*/
int ltexturesUpdateTextureRec( lua_State *L ) {
if ( !lua_isnumber( L, -3 ) || !lua_istable( L, -2 ) || !lua_istable( L, -1 ) ) {
TraceLog( LOG_WARNING, "%s", "Bad call of function. RL_UpdateTextureRec( Texture2D texture, Rectangle rec, int pixels{ {} } )" );
lua_pushboolean( L, false );
return 1;
}
size_t texId = lua_tointeger( L, -3 );
if ( !validTexture( texId ) ) {
lua_pushboolean( L, false );
return 1;
}
size_t len = uluaGetTableLen( L );
unsigned char *pixels = malloc( len * 4 * sizeof( unsigned char ) );
int t = lua_gettop( L );
int i = 0;
lua_pushnil( L );
while ( lua_next( L, t ) != 0 ) {
size_t colLen = uluaGetTableLen( L );
int t2 = lua_gettop( L );
int j = 0;
lua_pushnil( L );
while ( lua_next( L, t2 ) != 0 ) {
*( pixels + ( i * colLen ) + j ) = lua_tointeger( L, -1 );
j++;
lua_pop( L, 1 );
}
i++;
lua_pop( L, 1 );
}
lua_pop( L, 1 ); /* Pixels arg. */
Rectangle rec = uluaGetRectangle( L );
UpdateTextureRec( *state->textures[ texId ], rec, pixels );
lua_pushboolean( L, true );
free( pixels );
return 1;
}
/*
## Textures - Texture Drawing
*/
@@ -2490,7 +2602,6 @@ int ltexturesGetPixelColor( lua_State *L ) {
lua_pop( L, 1 );
size_t texId = lua_tointeger( L, -2 );
// if ( !validTexture( texId ) ) {
if ( !validSourceTexture( texId ) ) {
lua_pushboolean( L, false );
return 1;